Tampa Bay's rotation has been plagued by several injuries and the Astros are in pursuit of starting pitching. Here are this week's top headlines:
Astros want to add starting pitching
Houston's opening day payroll was $72 million a hot start may lead the front office to consider spending this summer. Cole Hamels and Johnny Cueto could be available and Aaron Harang may be an intriguing option. ESPN's Keith Law believes the Astros have the third best minor league system in baseball and as a result might have expendable pieces.
Rays' Alex Cobb to undergo Tommy John surgery
Cobb was on the disabled list with tendinitis but had started to throw again before being shut down. He posted a 2.87 ERA in 166.1 innings last season and was Tampa Bay's best starter in 2014.
Devin Mesoraco out with hip surgery
Mesoraco posted 25 home runs last season but was batting .083 through 11 games. Season-ending surgery remains an option.
Alex Guerrero drawing interest
Guerrero has had a fast start to the 2015 campaign and as a result the Dodgers rookie is drawing a notable amount of interest. Los Angeles has several options at third base and may be open to dealing Guerrero before the deadline.
Diamondbacks sign Jarrod Saltalamacchia to minor league deal
Saltalamacchia struggled offensively with the Marlins and ultimately lost his starting job to J.T. Realmuto. His bat could warm up, however mixed reviews from starting pitchers and offensive inconsistencies led Miami to move on.
Royals add Drew Butera
Kansas City missed out on Saltalamacchia and as a result acquired Butera to be its backup catcher. Butera will backup Salvador Perez behind the plate.
Indians sign Carlos Marmol
Marmol has had control issues in the past but adds depth to Cleveland's bullpen.
Royals' Jason Vargas, Baltimore's Kevin Gausman to DL
Detroit also placed Alex Avila on the 15-day DL.
Mets' Noah Syndergaard to make major league debut
Dillon Gee is on the DL which allowed the Mets to promote one of their top pitching prospects.
Red Sox option Allen Craig
Craig struggled at the plate before being demoted. Boston also considered trading him.
Drew Smyly expected to undergo season-ending surgery
The Rays placed Drew Smyly on the disabled list with back stiffness and tightness on Friday, and according to Marc Topkin of The Tampa Bay Times, Smyly has also suffered from a tear in his labrum that is expected to require season-ending surgery.
Athletics acquire Edward Mujica
The Red Sox designated Mujica for assignment and will join a struggling bullpen in Oakland.