"I'm not worried about it," said Mattingly. "Really, it's just to get his work in and to make sure he's healthy. He's able to go deep into a game, around 100 pitches, where we always are with Teddy."
Lilly, disabled with recurring neck stiffness, allowed seven runs (six earned) in six innings and two home runs, including a grand slam. He made 83 pitches.
Lilly said he felt fine physically but was unhappy with his pitching.
"I didn't pitch well at all," he said. "I felt good."
But Lilly said he's ready to go for Saturday and his arm is built up enough to give six or more innings.
"I don't see why not," he said. "It has a lot to do with how I pitch. If I keep pitching well, they'll leave me out there."
Lilly said his pitches were flat and lacked movement, but he blamed it on just a bad day on the mound, nothing physical.
He opened the season on the 15-day disabled list and will be activated for Saturday's game. He is scheduled to throw a bullpen session Wednesday.