Chavez was diagnosed with a concussion and whiplash after diving for a ball hit by the Orioles' J.J. Hardy on May 2. He said that he probably could have returned to the Yankees' lineup sooner.
"Honestly, for probably the last three days, I felt pretty close to 100 percent," Chavez said. "I took BP [Wednesday and Thursday] and felt fine. ... I just kind of felt myself getting better. I don't necessarily feel that the tests helped me do that. I just feel myself getting better every day."
Chavez, who has hit .290 (9-for-31) with three home runs and five RBIs in 15 games for New York, said that he took the tests with a neurologist and also on a computer at Yankee Stadium. He joked that he wasn't sure if he could have passed the challenging exam even before his concussion.
"It's very unconventional," Chavez said. "I can't say that I fully agree with the whole process of it. It's a lot of shapes, numbers, memory -- a whole lot of stuff. There's five different parts. It's a difficult test."
Chavez had less issue with the daunting assignment of coming off the disabled list to face the Mariners' Felix Hernandez, getting the nod as the Yankees' designated hitter on Friday.
"That's fine with me," Chavez said. "That's OK."