Santiago gave up eight runs on 11 hits, including three home runs over 4.2 innings, in Saturday's loss to Kansas City. He didn't walk a batter, but trying to reduce his high walk rate may be altering his performance. "That aggressive mentality where I let it fly and kind attack the hitters, I have a little blockage in there right now where I'm trying to control the zone and make everything over the plate," he told the Minneapolis Star Tribune.
Santiago has been terrible since he was traded to Minnesota with 23 runs allowed in four starts. He has just three walks in 19 innings over that span, but has given up seven home runs.