Maryland Coach Randy Edsall opened the team’s annual media day event Monday with an update on offensive lineman Evan Mulrooney’s health, announcing that the player had a viral infection that caused him to be hospitalized last week.

Mulrooney was released from the hospital Monday afternoon and visited the team facility, Edsall said. He did not participate in any practices last week.

“He looks good. He had a viral infection. I don’t know what it was, so he’ll be out for an extended period of time until the doctors clear him,” Edsall said. “However long that will be, we don’t know. But hopefully first and foremost he gets healthy.”

A 6-foot-4, 295-pound junior, Mulrooney was expected to compete with Silvano Altamirano for the starting position at left guard during preseason camp. Mulrooney has made his mark primarily at center the last two years, first with five starts at the position in 2012. He played in seven games a year ago at the position and on special teams.

Mulrooney had an impressive spring, offensive line coach Greg Studrawa said Monday, adding that Mulrooney had a fever north of 100 degrees on Sunday night.

“I’d like to get Evan back in there and get him going,” Studrawa said. “He was playing good as anybody at the end of spring.”