Casper Wells stayed back in Seattle on Monday to undergo an examination of his head.

Wells has been sidelined since Saturday. At first, the M's were calling his ailment a "flu-like" illness, but now they're saying there are concerns about his equilibrium. We'll have to wait for the results of the exam to get a clearer picture about what exactly is going on with the outfielder.

Casper Wells (flu) will not play Monday.

Wells is still recovering from the flu-like illness that he came down with on Saturday. The outfielder should be ready to rock after another day or two of rest.

Casper Wells was scratched from Saturday's lineup due to flu-like symptoms.

It's not clear at this point if he's feeling good enough to play Sunday. Wells is hitting .216/.310/.431 in 31 games since joining the Mariners.

Casper Wells returned to action on Friday September 9.

Casper Wells (elbow) remains unavailable to play Wednesday.

Mariners manager Eric Wedge said Wells is "still struggling" with his bruised left elbow and is unable to hit. Mike Carp is playing left field Wednesday, with Trayvon Robinson covering center.

Casper Wells (elbow) is not in Monday's lineup against the Angels.

Wells is day-to-day with a left elbow contusion after being hit by a pitch during Sunday's game. Mike Carp will make the start in left field Monday.

Casper Wells left Sunday's game in the second inning after getting hit by a Trevor Cahill pitch.

Wells was diagnosed with a contusion of his left elbow and X-rays were negative. Consider him day-to-day for now.

Casper Wells went 2-for-4 with a home run and two RBI in Seattle's loss to the Rays on Sunday.

Wells is now batting .333 with six home runs and 14 RBI through his first 15 games in a Mariners uniform. There are worse fliers to take in shallower mixed leagues if you're in need of an outfielder.

Casper Wells singled in four at-bats in his return to action Friday.

Wells was given a scare Wednesday when he had to leave the game after being hit in the nose by a Brandon Morrow fastball. But, obviously he's fine given that he didn't even end up missing a game.

Casper Wells left Wednesday's game against the Blue Jays in the sixth inning when he was hit in the nose by a fastball from Brandon Morrow.

Scary stuff. Wells, who entered Wednesday's game with home runs in four straight games, took a glancing blow while trying to back away from the pitch. The good news is that X-rays came back negative and he is considered day-to-day. "It just felt like my nose fell off, pretty much," said Wells. "I couldn't see, which was scary. My eyes got all watered up and I couldn't see what was going on."

Casper Wells went 1-for-3 with a solo homer and stolen base in Sunday's win over the Mariners.

Since coming over from the Tigers on July 30, Wells has appeared in just 10 games. He's really just a fourth outfielder with mediocre speed and decent pop. The real problem is that he's struck out 44 times in 149 at-bats this season.

Casper Wells hit a two-run homer off Oakland's Rich Harden in Tuesday's game,

Wells has started all three games since joining the Mariners and gone 4-for-11 with three RBI. We're skeptical that he'll hit righties well enough to be a quality regular, but the Mariners might as well give him a long look.

Mariners acquired OF Casper Wells from the Tigers in the Doug Fister deal.

Wells is a very good defensive outfielder and was holding his own with the bat, hitting .259 with four homers and a .781 OPS over 124 plate appearances before being sent down to Triple-A earlier this month. He profiles best as a fourth outfielder/occasional starter.

Tigers optioned OF Casper Wells to Triple-A Toledo.

Wells has been with the Tigers all season, but he was cleared to make room for Wednesday's starter Duane Below. The 26-year-old has been productive when called upon, batting .259 with four homers and a .781 OPS over 124 plate appearances. He'll surely be back before long.

Casper Wells went 0-for-5 with four strikeouts Sunday versus the Astros.

Good thing for Casper that the Tigers made their roster decisions a couple of days ago. He made the team over Andy Dirks with an exceptional first few weeks, but he's currently in 0-for-10 and 3-for-25 slumps, lowering his average to .245.

Casper Wells went 4-for-4 with a homer and two doubles as a Tigers split-squad took down the Orioles 9-1 on Sunday.

Wells is hitting .391/.533/.783 in 23 at-bats. He deserves a chance to be some team's fourth outfielder and starter against left-handed pitching, but since the Tigers start right-handed hitters throughout the outfield, he's just not a great fit with the team. Maybe they could use him in right field, with Magglio Ordonez DHing, when they give Victor Martinez starts behind the plate.

Tigers outfield prospect Casper Wells has been diagnosed with "jumper's knee," also known as patellar tendinitis.

The issue sometimes requires corrective surgery, but Wells will undergo therapy instead and try to avoid going under the knife. He turned in a decent .233/.309/.483 batting line with 21 home runs and 46 RBI in 103 games this year at the Triple-A level and should see big league playing time in 2011.

Tigers recalled OF Casper Wells from Triple-A Toledo.

With Johnny Damon possibly leaving town, there is actually some possible playing time available to Wells. He definitely has some pop and some speed despite his struggles at Triple-A this year (.233/.309/.483) and his inefficient work on the basepaths (15 stolen bases, 16 caught stealings in the minor leagues in the last two years). He could make for a decent flier in the deepest leagues.

The Tigers will recall outfielder Casper Wells from Triple-A Toledo on Monday, according to MLB.com.

Wells was in Toledo's starting lineup Sunday but was pulled. He's on his way to Detroit, according to the report, and a pitcher will likely be sent down on Monday to return the bullpen to seven members. Which reliever will be sent down? That's unknown at this time. Wells had two hits in nine at-bats during his last stint with the Tigers.

Tigers optioned OF Casper Wells to Triple-A Toledo.

Wells loses his spot to Ryan Raburn because Raburn can play both infield and outfield positions, though he wasn't getting much playing time anyway. Wells had two hits in nine at-bats during his time in the majors.