Alvarez (hand) has gone 5-for-8 with a walk, three doubles, and a stolen base through the first two games of his rehab assignment with Double-A Corpus Christi. The 28-year-old returned to game action this week for the first time since landing on the injured list in May,

The Houston Astros have signed Craig Kimbrel to a major league contract, and the veteran reliever reported to the team in Baltimore on Friday. The 37-year-old Kimbrel posted a 5.33 ERA with the Orioles last year before being released in September.

Veteran reliever Craig Kimbrel will add a fresh arm to the Astros' ailing bullpen as they try to hold on to their lead in the AL West.

Athletics: Jeffrey Springs (10-8, 4.37 ERA, 1.20 WHIP, 114 strikeouts); Mariners: George Kirby (8-6, 4.22 ERA, 1.18 WHIP, 94 strikeouts) BETMGM SPORTSBOOK LINE: Mariners -186, Athletics +154; over/under is 8 runs BOTTOM LINE: The Seattle Mariners will try to keep their eight-game home win streak alive when they face the Athletics.