The Giants had a rotation battle throughout Spring Training. Logan Webb, Robbie Ray and Justin Verlander were locked into the top three spots. President of baseball operations Buster Posey said in December that the team remained committed to Jordan Hicks as a starter. The final job would go to one of three younger arms: Kyle Harrison, Hayden Birdsong or Landen Roupp.
Harrison seemed like the frontrunner entering camp. If that had been the case, he quickly pitched his way out of it. The lefty allowed eight runs in 6 2/3 spring innings. The Giants optioned him before Opening Day. (He’s since made four starts at Triple-A Sacramento, allowing nine earned runs despite recording 21 strikeouts over 15 innings.) It came down to Birdsong and Roupp, with the latter getting the nod. Birdsong broke camp as a long reliever.
The decision came as a surprise. Birdsong started 16 all of his major league appearances last year. He turned in a 4.75 ERA over 72 innings as a rookie. He’d been lights out during Spring Training, firing 12 innings of one-run ball with 18 strikeouts and no walks. Roupp had a good but less impressive camp, giving up five runs with 14 strikeouts and one walk across 12 frames. He also had more experience working out of the bullpen, as he’d started just four of 23 appearances during his debut season last year.
San Francisco probably feels good about their decision to give Roupp a rotation job. The 26-year-old righty carries a 4.09 earned run average with an excellent 31.2% strikeout rate through the first four turns. He has recorded a pair of quality starts and reached seven innings for the first time in his MLB career on Saturday, when he held the Angels to two runs while striking out nine.
While Roupp has earned continued starting looks, the rest of the rotation beyond Webb has struggled. The Giants have raced to a 15-9 record despite their rotation having the seventh-worst ERA in MLB, entering play Wednesday. They should already consider making a change.

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