Add in the concussion issues Avila had in 2012 and 2013, and there's serious concern from Ausmus, a 17-year Major League catcher who sustained one official concussion in his career but acknowledges the difference in reporting since then.
"For sure, there's concern there," Ausmus said. "This is a dangerous area. There's a lot more information on concussion and how dangerous the long-term effects are."
Avila said on Monday that he feels fine, which is the same thing he told Ausmus and the staff. Much like two weeks ago, he'll need a symptom-free day before he plays again. That could happen on Tuesday, but Ausmus isn't ready to plan around it, symptom-free or not.
"There's a chance he'll come in tomorrow and be able to play tomorrow night," Ausmus said, "but I do think we have to be cautious about it."
If this was happening earlier in the season, Ausmus said, it wouldn't be a day-to-day issue. Avila would probably be placed on the seven-day concussion disabled list, mainly so that the team could call up another catcher. But with expanded rosters, that's not a factor.
With Avila out, Bryan Holaday was behind the plate on Monday to catch Max Scherzer. The Tigers also have catching prospect James McCann, who started a game during Avila's previous absence.
Jason Beck is a reporter for MLB.com. Read Beck's Blog and follow him on Twitter @beckjason. This story was not subject to the approval of Major League Baseball or its clubs.