Laynce Nix (Achilles) is back in Friday's lineup against the Pirates. Nix missed Wednesday's game in order to rest a sore right Achilles' tendon. "From what I gather, the injury is always going to bother him," said Nationals manager Davey Johnson. "I'm hopeful that if he plays on it when it bothers him, it's not going to be something that can get worse. He's been a big addition to our offense (and) I'd hate to have to sit him down." Health-permitting, Johnson plans to use Nix against more left-handed starters moving forward.