Matt Kemp is two games in to a rehab assignment at Class-A Rancho Cucamonga, and it goes well so far. Last night he went 2 for 4 with three RBI. That matches his 2 for 4 in his first game.
Jay, 32, hit .296/.374/.375 in 433 plate appearances with the Cubs last season, which is adequate. He’s heralded more for his defense and his ability to play all three outfield spots.
The Mariners are losing center fielder Jarrod Dyson to free agency and likely don’t want to rely on Guillermo Heredia next season, hence the interest in Jay. The free agent class for center fielders is otherwise relatively weak.