The Mariners are staying busy.

On Monday, the club reached a tentative agreement on a trade that would send right-hander Brandon Morrow to the Blue Jays for right-handed reliever Brandon League and a prospect, Fox Sports reported. A Mariners spokesman wouldn't comment on the report.

Morrow, 25, went 2-4 with a 4.39 ERA in 69 2/3 innings for the Mariners last season. He is 8-12 with a 3.96 ERA in 197 2/3 innings for his career. League, 26, is 7-10 with a 4.09 ERA in 202 1/3 innings for the Blue Jays starting in 2004. He went 3-6 with a 4.58 ERA in 74 2/3 innings for Toronto in 2009.