Aaron Cook will start for ‪Boston Sunday against the Braves‬.

After Boston announced that Clay Buchholz (illness) would miss the outing, speculation correctly turned to Cook as his replacement. Cook has been on the disabled list since May 6 with a lacerated knee. Although he was shelled in his only appearance with the Red Sox earlier this year, allowing seven runs (six earned) over 2 2/3 innings against the Orioles, Boston didn't have many alternative options. Cook isn't likely to draw many more starts for Boston, as the club is actively looking for rotation upgrades via trade, but can be used in deep AL-only formats as long as he is in the rotation.

The Red Sox will activate Aaron Cook prior to Sunday's game.

Pulled from his Saturday start at Pawtucket, it appears as though Cook will fill in for Clay Buchholz (illness) on Sunday against the Braves. The veteran righty, on the disabled list since May 6 with a lacerated knee, was bombed in his only appearance with the Red Sox this year, allowing seven runs -- six earned -- on eight hits and a walk over just 2 2/3 innings in a loss to the Orioles in May. The sinkerballer owns a 4.56 ERA in the big leagues and can be ignored outside of deep AL-only fantasy formats.

Aaron Cook (knee) gave up three runs on seven hits and one walk in four innings in his first rehab appearance Monday with Triple-A Pawtucket.

He threw 66 pitches, 40 for strikes. Cook is rehabbing as a starter, but will be used in long relief with the Red Sox. The veteran right-hander has been on the disabled list since May 6 with a lacerated knee.

Aaron Cook (knee) will begin a rehab assignment Monday at Triple-A Pawtucket.

Cook is scheduled to start Monday at Syracuse but we expected him in a long relief role with the Red Sox when activated. The veteran right-hander has been on the disabled list since May 6 with a lacerated knee.

Aaron Cook (knee) threw a successful simulated game Wednesday evening at Single-A Lowell.

Cook is just about ready to embark on a minor league rehab assignment. The veteran right-hander has been on the disabled list since May 6 due to a lacerated knee.

Aaron Cook (knee) has been cleared to resume full mound activity.

Cook is still at least a couple weeks away from returning, but looks to be trending in the right direction. He'll be used in a long relief role with the Red Sox when activated.

The wound on Aaron Cook's left knee has yet to fully heal, and he will not be allowed to pitch until it does.

Cook has had the stitches in his knee removed and reportedly was allowed to throw a bullpen session over this past weekend. It sounds like the Red Sox are scaling back his activity, though. His rehab will go quickly once he's cleared to throw again.

Aaron Cook (knee) is able to run again and threw a bullpen session on Saturday.

Cook had the stitches removed from his left knee Saturday and is now close to going out on a rehab assignment. He should be ready to go in a couple weeks and will likely slide into a long relief role for Boston when activated.

Aaron Cook is scheduled to get the stitches out of his left knee Saturday.

Cook is currently rehabbing a left knee laceration suffered during a start against the Orioles on May 5. He threw a three-inning simulated game on Thursday and sprinted Friday for the first time since the injury. The timeline for his return isn't yet clear.

Aaron Cook (knee) threw threw simulated innings Monday.

Cook is currently working his way back from a left knee laceration suffering during a start against the Orioles on May 5. He believes he'll be ready to return as soon as he's eligible, though it's possible, if not likely, that the Red Sox will send him out on a minor league rehab assignment.

Aaron Cook really struggled in a spot start Saturday, allowing seven runs -- six earned -- on eight hits and a walk over just 2 2/3 innings in a loss to the Orioles.

Cook got a 1-2-3 in the first inning, but he allowed a run in the second, and the O's teed off on him in the third, scoring seven runs, six of which that were charged to the right-hander. The 33-year-old is expected to now be moved to long relief.

Aaron Cook left Saturday's game briefly in the second inning with an apparent left knee injury.

Cook got spiked by Chris Davis while covering home on a passed ball, but returned to the game after getting the gash stitched up. Clayton Mortensen was called in from the bullpen but later waived back prior to making a pitch. Cook has allowed two hits through his first two innings.

Aaron Cook will start in place of Josh Beckett on Saturday against the Orioles.

Cook has exercised the opt-out clause in his contract, so the Red Sox are expected to add him to the active roster in the next 48 hours to prevent him from becoming a free agent. The original expectation was that Cook would pitch out of the bullpen, but he'll actually start in place of Beckett, who dealt with some unspecified soreness after his last start. Cook a 1.89 ERA and 13/11 K/BB ratio in 33 1/3 innings over five starts at the Triple-A level this season, but he isn't worth chasing in most fantasy leagues.

Alex Speier of WEEI.com reports that the Red Sox are plan to call up right-hander Aaron Cook from Triple-A Pawtucket within the next few days.

Cook's contract has an out-clause on May 1, so the Red Sox will add him to the active roster to prevent him from becoming a free agent. Confirming a report by Maureen Mullen of CSNEE.com, Speier hears that multiple teams expressed interest in trading for Cook, but they were told that the Red Sox planned to promote him to the majors. Cook, 33, has a 1.89 ERA and 13/11 K/BB ratio in 33 1/3 innings over five starts with Triple-A Pawtucket. He is expected to pitch in relief with Boston, which is something he hasn't done regularly since his second major league season in 2003.

The Red Sox are discussing the possibility of recalling Aaron Cook and using him in the bullpen.

Red Sox pitching coach Bob McClure believes that Cook would be successful in that role. Time is running out for the Red Sox to make a decision on Cook, as he can opt out of his contract if he isn't promoted by May 1. He's pitching extremely well for Triple-A Pawtucket, with a 3-0 record and 1.33 ERA through his first four starts.

Aaron Cook allowed one run over seven innings Monday night in his latest start with Triple-A Pawtucket.

Cook now has a 1.33 ERA in his first four starts with the PawSox, though this includes an underwhelming 8/9 K/BB ratio over 27 innings. The veteran right-hander has an opt-out clause in his contract if the Red Sox don't promote him by May 1, though he could also wait and opt out on June 1. He would be a natural alternative if the Red Sox ultimately decide to keep Daniel Bard in the bullpen full-time.

Red Sox reassigned RHP Aaron Cook to minor league camp.

An expected move. Cook posted 1.88 ERA and 6/4 K/BB ratio over 14 1/3 innings as a non-roster invitee this spring and would likely be the first option up from the minors if the Red Sox need a starter. His contract includes an opt-out on May 1.

Aaron Cook held the Nationals to a run and two hits over five innings in a victory Monday.

Cook will begin the season at Triple-A Pawtucket, but he could be the first person called up when the Red Sox need a starting pitcher. He ends the spring with a 1.88 ERA in 14 1/3 innings.

Aaron Cook allowed two earned runs in four innings Thursday in a spring outing against the Yankees.

It was Cook's second appearance in the Grapefruit League, and he fared well. The veteran right-hander signed a minor league contract with the Red Sox this winter and will function as starting rotation depth in 2012.

Aaron Cook turned in a successful spring debut Saturday, pitching 3 1/3 scoreless innings against an Orioles split-squad.

Cook faced the much better of the two Orioles split-squads, as everyone in the lineup today had a pretty good chance of cracking the Opening Day roster. He allowed just one hit, walked one and struck out one. Cook probably isn't a candidate for Boston's initial rotation, but he could be a factor come late April or early May.