Georgia running backs coach Thomas Brown said last week that he hoped tailback Keith Marshall would return to action before the end of spring practice, and he got his wish Tuesday. Sidelined since March 26 with a hamstring injury, Marshall fully participated in practice, exchanging the green (non-contact) jersey he wore late last week for a regular red jersey. “I wouldn’t say (he was) 100 percent, but he … got more work than I thought he would,” coach Mark Richt said. Marshall’s return was “good for him and good for his fellow backs,” Richt said. “It takes a little pressure off them.”