Texas Rangers pitcher Yu Darvish went from nearly perfect to wild in his first two starts of the season, mostly because of a blister on his right index finger. The best option for Darvish is to take off his next start and allow the finger to fully heal before he takes the mound again.
Darvish dealt with the injury during his almost-perfect outing on April 2, showing strong control despite the pain. Five days later, he had nowhere near the same control against the Los Angeles Angels of Anaheim, giving up three runs on six hits with four walks. He threw 85 pitches over five innings before exiting the game.
Despite the poor performance, Darvish got the win as he left the game with the Rangers up 4-3 on the Angels. The win improved his record for the year to 2-0.
A blister isn't a major concern, but in the short-term it's certainly an issue for a pitcher. Without giving it the proper time to heal, it's something that can keep popping up and forcing Darvish to be off the mark with his pitches.
In this situation, it's better for the Rangers to save Darvish's performances for when the finger is better. It's not worth rushing him back on the mound and risking re-aggreavation of the injury and a terrible game because of it.
Posting a 4-2 record over the first week of the season has given the Rangers some flexibility to rest Darvish and make sure he can come back in the next two weeks with a completely healed finger. This injury isn't much of a concern, but giving Darvish a day off seems to be the best way to make sure it's not a concern at all going forward.