The Ravens have a policy of not commenting on injuries.
The injury to the 6-foot-9, 330-pound projected successor to retired All-Pro tackle Jonathan Ogden triggered an immediate line shuffle.
Cornerback Fabian Washington was activated from the non-football injury list after passing his conditioning test on the second try. He took snaps in the nickel package.
Wilcox is recovering from offseason toe surgery, and Williams has a lower left leg injury.
WHISTLES ON: A crew of NFL officials are overseeing practices this weekend, and will go over new rule interpretations with the players Monday.
Harbaugh is taking a friendly approach with officials as he enters his first season in Baltimore.
"Basically, my rule of thumb is as long as they call it for us then I will get along with them well," he said. "But as soon as they start calling it for the other team, then I think the relationship starts to deteriorate a little bit. They all like me. I’m a nice guy.
"My goal is to have a good relationship with the officials. They do a really good job. It’s not really adversarial very often. Sometimes, it gets frustrating, but I think they understand that."
The two players are good friends, and Heap isn’t known for fighting. During the brief scrap, Haloti Ngata shoved Heap, who responded by throwing punches at the massive defensive tackle.
There are less than 1,000 tickets available for the two home preseason games: Aug. 16 against the Minnesota Vikings and Aug. 28 against the Atlanta Falcons.