Why would there be? He had a horrific game. Even the best have them once in a while.
As I wrote last night in the gamethread, I think he (or Narvaez) was tipping pitches. The Twins seems to know exactly what was coming. Or maybe he's gotten into some sort of pattern with his pitches that the Twins picked up on.
I do know in the second inning, the hits that drove in the 7 runs all came in the span of 8 pitches, and that included the two outs he recorded in that inning.
Yes, his velocity was down a tick, but that happened a few times last year and he was able to pitch around it. He couldn't yesterday. If we see a repeat over the next couple games, then I'll worry about a physical problem.