Olson, 28, has pitched in 25 games for Buffalo this season, posting a 4.56 ERA in 108.2 innings. He walked 4.2 batters per nine and struck out 7.2.
The Mets really need a lefty after Tim Byrdak hit the DL the other day. Olson is no Tim Byrdak – lefties are hitting .270 against him, compared to righties who are hitting .270 – but he will still provide Terry Collins with another late-inning option in the bullpen.
Collins seems to need two left-handers for two different roles. One guy will pitch an inning early on and the other will be put in high-pressure situations in the seventh or eighth innings, sometimes against the opposing team’s best left-handed hitter. I think Josh Edgin will take over the late-game role that Byrdak had, and he has definitely earned it. Edgin has definitely impressed me so far this year.
The Mets will need to make another roster mover before tomorrow night’s game against the Marlins. Olson not only needs to be put on the active roster, but also the 40-man roster, so someone will be designated for assignment. My guess would be Elvin Ramirez, who has been shuttled back and forth between Buffalo and New York all season, but we’ll have to wait until tomorrow to get that news.