Seattle right-hander Emerson Hancock (1-1, 5.70 ERA) starts Monday night against the visiting New York Yankees.
Last season, Hankins appeared in all 17 games for the Seahawks and had 30 tackles, five tackles for loss and one sack.
The Mariners begin a six-game homestand Friday with three against the Blue Jays.
Mariners RHP Bryan Woo (4-1, 1.58 ERA) is scheduled to start the series finale Wednesday.
Mariners RHP Emerson Hancock (1-1, 6.62 ERA) starts the middle game of the series Tuesday night against LHP Jeffrey Springs (4-3, 4.98).
RHP Bryce Miller (2-3, 3.52 ERA) will face Athletics RHP Luis Severino (1-3, 3.30) Monday at West Sacramento.
A star player for the Sounders will be out of action for at least a month.
Bryan Woo (3-1, 3.09) pitches for the Mariners versus Jack Leiter (2-0, 2.03) at Texas on Friday.
The Mariners used a mammoth seventh inning to beat the Angels this afternoon.
Seattle RHP Emerson Hancock (1-1, 7.71) starts Wednesday against Angels LHP Tyler Anderson (2-0, 2.60) in the finale of the two-game series.