Geovany Soto started on Monday night, his third straight start. It was also his seventh since being acquired from the Cubs on July 31. Soto will still do most of the catching while Napoli is out, but Washington wanted to pair Martinez with Harrison.
"I have a lot of confidence in his receiving and throwing ability," Washington said. "He's comfortable with Harrison, he caught him in Spring Training. Soto is going to get the bulk of the playing time, but Martinez will play some."
Martinez caught in 22 games for the Padres last season. He was hitting .270 with two home runs, 22 runs scored and 27 RBIs in 65 games at Triple-A Round Rock.