"I don't know that he feels that he's 100 percent," Melvin continued, "but until we talk to him tomorrow and see firsthand how he looks, I'm not really sure."
Young, dealing with a strained left quad, played in an extended spring training game for a second consecutive day Tuesday, picking up five at-bats while experiencing some "natural soreness," Melvin said.
Crisp, meanwhile, took part in full pregame workouts with the A's on Tuesday, and outfielder Michael Taylor was optioned to Triple-A Sacramento after the club's 6-5 loss to Texas, making roster room in advance of Crisp's likely return.
"I'm optimistic," said Melvin. "I think there's a great chance. Today he said he could have played. The plan is to play him tomorrow."
Taylor was recalled from Sacramento May 4 for his second stint with the A's this year and went 1-for-17 with two walks in six games, including five starts.