May took a line drive to the head off the bat of Jake Lamb during his appearance in Sunday's game against the Diamondbacks, but he got up and walked off the field under his own power, Richard Morin of The Arizona Republic reports.
May had just entered the game in relief for starting pitcher Ross Stripling and got through just one out before being hit in the head with a sharp line drive. It's encouraging that May was able to get up and walk off the field without any assistance, but it wouldn't be surprising if he were forced to miss some time as a result of the incident.