Keep in mind, several players did not participate in today's practice, players such as rookie first-round pick Mykel Williams, who injured his ankle on Monday, according to the team. Williams played through an ankle injury all of last season. It's unclear if he has injured the same ankle. More on him in a minute.

San Francisco 49ers first-round pick Mykel Williams sat out Tuesday's practice due to what the team described as a "minor ankle" injury. The update suggests there's no long-term concern, but the rookie defensive end's status will be monitored closely as training camp progresses.

The San Francisco 49ers defense is counting on early contributions from its rookie class after a significant offseason overhaul that saw several veteran departures. Five of San Francisco's first draft picks were defensive players, led by first-round selection Mykel Williams, a...