Jack left Tuesday's game with a leg injury and will not return, ESPN New York's Mike Mazzeo reports.

He took a kick to the back of the leg late in the game, and was still able to get his owners 12 points and three assists in 30 minutes before exiting. The Nets are off until Feb. 20, and Jack should be considered day-to-day.

Jack had a team-high 26 points (10-15 FG, 4-5 3Pt, 2-2 FT) with eight assists in 35 minutes in the loss to Milwaukee on Monday.

Jack was coming off an 11-point, six-turnover outing in the blowout loss to the Wizards on Saturday. He shot well against the Bucks and continues to be one of the few Nets worth owning on a consistent basis.

Jack scored 24 points (9-13 FG, 2-4 3Pt, 4-5 FT) with six assists, four rebounds and a steal in 36 minutes during Wednesday's win over the Raptors.

For the second time in a week Jack had a big game against his former club from north of the border, but with Deron Williams finally back in the lineup Jack could lose his hold on the starting point guard spot in the near future. Williams has had a tough time staying healthy this season, so if Jack does get bumped to the bench don't cut him loose immediately, but have a contingency plan ready for when he loses his current fantasy value.

Jack scored a career-high 35 points (13-30 FG, 1-7 3Pt, 8-8 FT) with 13 assists, eight rebounds and a steal in 52 minutes during Friday's OT loss to the Raptors.

He did everything he could to drag the Nets to a win over his former club, but fell just a little short in the end. Jack's now had back-to-back games with 13 assists, and over his last seven games is averaging 19.4 points, 8.4 assists, 4.7 boards, 1.9 steals and 1.0 threes. Unless Jack cools down, Deron Williams may have a hard time getting back into the starting lineup once he returns to action from his rib injury.

Jack scored 14 points (5-13 FG, 2-2 3Pt, 2-2 FT) with 13 assists, five rebounds and two steals in 38 minutes during Wednesday's loss to the Hawks.

It's his first double-double in nine games, and his third since moving into the starting lineup due to Deron Williams' calf issues. Jack remains a solid second-tier option at point guard in the short term, but Williams has begun practicing, so Jack's window for value may be coming to a close.

Jack scored 13 points (6-16 FG, 0-4 3Pt, 1-2 FT) with six assists, two rebounds and a block in 39 minutes during Monday's loss to the Rockets.

He continues to provide decent numbers while Deron Williams (ribs) is on the shelf, and Jack is now averaging 13.4 points, 7.6 assists and 3.2 boards over his last five games.

Jack (rest) put up 14 points, five rebounds, 10 assists, and two blocks in 37 minutes of action against the Sixers on Friday.

Jack sat out Thursday's practice to rest but managed to take on a full workload Friday. He responded well to the time off with a solid box score, so the Nets may be more inclined to give Jack some time to rest in the future.

Jack was held out of Thursday's practice to rest, Mike Mazzeo of ESPN reports.

Coach Lionel Hollins remarked that he'd like to cut down on Jack's workload, and he'll start by giving him a day off Thursday after the veteran played 39 minutes Wednesday night. With Deron Williams (hip) probably out at least a few more games, Jack should continue to see starter's minutes, though Hollins will likely try to keep him in the low-to-mid 30s.

Jack scored 15 points (7-13 FG, 1-2 3Pt) with four rebounds and four assists in 39 minutes during Wednesday's loss to the Celtics.

Deron Williams (hip) lasted just four minutes in his return to action before he had to head back to the locker room, so Jack's spot in the starting lineup is likely safe in the short term.

Jack scored 20 points (6-16 FG, 0-3 3Pt, 8-8 FT) to go along with four rebounds and 10 assists in 44 minutes Monday against the Mavericks.

Jack played big minutes with Deron Williams (hip) out due to injury. He's held onto the starting job, but Jack would definitely have increased fantasy value should Williams miss any more time.

Jack scored 4 points (2-9 FG, 0-1 3Pt), to go along with three assists, two rebounds, two steals, and three blocks in 25 minutes.

He may not have done much scoring the ball, but he put up solid defensive stats randomly. Jack is in an interesting situation, as Deron Williams has had his name thrown around in trade conversations. While Williams was out he showed what he was capable of, if given bigger minutes. But for the moment being he's splitting time with Williams, but remains a hold for his starting role and promise for a lot more.

Jack scored 16 points (4-12 FG, 1-1 3Pt, 7-8FT) to go along with three rebounds, two assists and one steal in 32 minutes Monday against the Kings.

Jack started over Deron Willliams again and the Nets won another game. Williams may eventually take the starting point guard job back, but Jack has at least earned himself a significant role with the team for the time being.

Jack started in place of Deron Williams again, scoring 22 points (10-15 FG, 1-2 3Pt, 1-1 FT) with six rebounds, two assists, one steal and one block in 39 minutes Saturday.

With Williams still not back to full health, Jack is going to continue to get heavy and run and put up useful fantasy lines. The issue for owners is that this production will be reduced once Williams resumes his position in the starting five. Until that happens, ride out Jack's stellar performances.

Jack started Friday's game against the Celtics while Deron Williams (calf) came off the bench, scoring 27 points (8-14 FG, 1-2 3Pt, 10-10 FT) and filling the box score elsewhere, grabbing seven rebounds and picking up five assists, a block and three steals.

Jack has put up some solid numbers while filling in for Williams, posting a double-double Sunday and scoring 17 on Tuesday. However, Williams will presumably return to the starting lineup if he's healthy.

Jack will start Sunday's game against Detroit, Mike Mazzeo of ESPN reports.

With Deron Williams sidelined due to a calf strain, Jack will enter the starting lineup and figures to match up with Detroit's Brandon Jennings. Jack is averaging 24.4 minutes per game this month, but he'll likely see 30-plus Sunday, as was the case Friday when he played 33 off the bench after Williams departed early in the game.

Jack scored seven points (1-8 FG, 0-2 3Pt, 5-6 FT), with six rebounds and four assists in 30 minutes during Wednesday's loss to the Bulls.

Jack got big minutes, but didn't produce much. Honestly, the entire Nets team failed to do much for fantasy owners on what turned out to be a rough night.

Jack posted a solid line Sunday against the Bulls with 12 points, four rebounds, four assists, and one steal in 27 minutes of action.

Jack has been hot-or-cold this season, but he's still posting solid averages of 10.4 points, 3.0 rebounds, 3.3 assists, and 1.1 steals per game. While his stats aren't the fanciest, he's still a fringe option in 12-man leagues because of his strong percentages and ability to contribute in limited minutes.

Jack equaled his season high with 23 points (8-15 FG, 1-2 3Pt, 6-7 FT) with five assists in 31 minutes in the win over the Thunder on Friday.

Jack helped the Nets snap a five-game losing streak by setting a season high with 15 field goal attempts. He has hit 58.2 percent of his shots from the field and averaged 17.0 points in his last five games.

Jack scored 15 points (5-9 FG, 1-1 3Pt, 4-4 FT) to go along with four assists and one steal in 24 minutes Monday against the Heat.

Jack has averaged 16.0 points over his last three games, but hasn't provided fantasy owners with major contributions in any other category. He is a valuable member off the bench for the Nets, but only has limited fantasy value when everyone on the Nets is healthy.

Jack was perfect from the field Thursday night in a loss to the Golden State Warriors. He scored 23 points (10-10 FG, 3-4 FT) with three rebounds, three assists, and three turnovers in 26 minutes.

Jack had himself a very impressive shooting performance on Thursday. He is capable of these flashes of brilliance, but can be an erratic fantasy play. The minutes are just not there on a talented Brooklyn squad and he should be left as a free agent in the majority of fantasy formats. Be ready to pounce, however, if something should happen to Deron Williams.