Perez, who has 195 career starts under his belt, was cut by the Mets earlier this week. He also has experience as a reliever, and was trying to make the Mets' roster as a lefty specialist.
The veteran lefty won 15 games and posted an impressive 3.56 ERA with the Mets in 2007, but since then, his numbers have dropped off dramatically.
Perez had 10 wins with a 4.22 ERA in '08, just three wins and a 6.82 ERA in '09, and then bottomed out last season, going 0-5 in 17 games (seven starts) with the Mets.
The Mets will still owe Perez, now 29, the bulk of the $12 million due to him this season.