Nationals shelved starter Stephen Strasburg is trying to kill two birds with one stone. While he works on recovering from a left trapezius strain, he is also tinkering with his mechanics.

Strasburg has played catch on flat ground, but not yet off the rubber, after being placed on the disabled list Saturday. He believes he might have subconsciously altered his mechanics, skewing the alignment of his delivery, due to a sprained ankle sustained in spring training.

The right-hander has been a mess most of the year, but particularly in recent starts. He allowed 16 runs in his last 13 innings covering four starts as his ERA catapulted from 4.73 to 6.55.