Grady Sizemore was born in Seattle. He went to high school in Everett. He is 31 years old and attempting to return to the Major Leagues after undergoing multiple surgeries and missing both the 2012 and 2013 seasons. Not too long ago, he was a star. He was an all-star from 2006-08, a Gold Glover from 2007-08 and won the Silver Slugger award in 2008. Then 2009 happened, where he still slashed .248/.343/.445 with 18 homeruns, but was bothered by his left elbow throughout the year and eventually had surgery in September. After that, he was limited to 104 games from 2010-11 while dealing with multiple knee injuries. Sizemore then missed the entire 2012 season due to multiple setbacks from his back and knee surgeries. And then he missed the 2013 season.
So, Sizemore has been out of baseball for two years and was hurt for much of the two years prior. Not an intriguing situation.
But, the Mariners will still sign Sizemore with the hope that he still has a resemblance of his 2008 form in him because the Mariners like to take gambles on veterans. Most (see: Jason Bay) don't work out but, this time it will be different!
Also, Sizemore met with the Mariners prior to the 2012 season and as mentioned before, he is from Seattle and played for the University of Washington. At this stage in his career, in addition to returning from injury, you'd like to think he'd stay close to home.
He also has a real chance of starting.
With the Mariners' outfield situation realistically consisting of Dustin Ackley, Franklin Gutierrez, Michael Saunders and Abraham Almonte (Hart and Morrison don't count), an obvious need remains. There is hope for Ackley to rebound this year, which I believe he can, but he should play left or right opposed to center like last year. Gutierrez and Saunders would then battle for the starting center field job (with Gutierrez winning and getting injured after 20 games, Saunders would then assume the starting job for the remainder of the season). That leaves one remaing corner outfield spot, which is where Sizemore could step right in. And while he was a center fielder, this would make more sense with all the surgeries he's had on his knees.
So, the Mariners will sign Grady Sizemore to a minor league contract. It will be a low-risk, medium-reward move. Cheap depth never hurts.