Oakland's already shaky starting rotation took a major blow Wednesday night when it was revealed that 21-year-old left-hander Jesús Luzardo would be shut down for four to six weeks with a rotator cuff strain.
While Luzardo has not yet thrown a major league pitch, the A's top prospect appeared poised to make the starting rotation following a phenomenal spring training. His big league debut will now have to wait and Oakland will have to scramble to shore up its rotation.
In the short term, the competition for the A's number five starter job is likely down to right-handers Chris Bassitt and Aaron Brooks. Bassitt still has a minor league option remaining while Brooks does not, giving the latter a slight edge.
In the bigger picture, the A's will likely have to add another starting pitcher to the mix. Veteran right-hander Edwin Jackson remains available on the free agent market and the team has been in contact with him throughout the offseason. The 35-year-old put together a strong 2018 season in Oakland and was a critical presence in the clubhouse.
As it currently stands, the A's starting rotation features Mike Fiers, Marco Estrada, Brett Anderson, Frankie Montas, and either Brooks or Bassitt. Right-hander Jharel Cotton and southpaws Sean Manaea and A.J. Puk are still recovering from injuries but should be back in the mix sometime this season.
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Unfortunately, the A's can't afford to sit around and wait for their potential returns. Signing Jackson has gone from a luxury to a necessity. His return would at least give Oakland four veteran starters to hold down the fort until reinforcements arrive.
Oakland still features one of the best bullpens in all of baseball, which means they don't need their starters to go more than five innings. They just need pitchers who can keep them in the game early on. Jackson has certainly proven more than capable of that.