Colombo suffered a broken fibula and tore ligaments in his ankle early against Green Bay in week 10, causing him to miss seven weeks. He was replaced by Doug Free, a former fourth round pick, who has impressed coaches and endeared himself to fans last week by beating Felix Jones down-field to block on the 49-yard touchdown run against Philadelphia.
Coaches have said that the job is Colombo's when he is ready to return, but that Free will continue to see playing time.
Watkins suffered a sprained PCL on a kickoff against San Diego a month ago. He will reportedly wear a brace on the knee and expects to play against Philadelphia next Saturday.
Running back Tashard Choice continued to improve today after suffering a concussion against Philadelphia last week, but will be held out of practice. If no symptoms emerge this week, Choice will be eligible to play Saturday, under the newly-adopted NFL concussion policy.