Browns running back Peyton Hillis is beginning to wonder and worry if he has a future with Cleveland past the next 12 games. Hillis said Monday he has no regrets about sitting out Cleveland's game on Sept. 25 against Miami with strep throat, a decision -- reached with advice from his agent -- that fueled speculation he missed the game to protest not getting a contract extension from the Browns. Hillis, who rushed for nearly 1,200 yards last season, is making $600,000 in the final year of his contract. His agent, Kennard McGuire, and the team have not been able to work out a new deal. Hillis said he wants to stay in Cleveland, but is beginning to doubt he'll be with the Browns beyond 2011. "Whenever something's not set in stone, then I guess anything is possible, which means your career's not here," he said. "So, yeah, that definitely worries me." Read more: http://espn.go.com/nfl/story/_/id/7084711/peyton-hillis-worries-long-term-cleveland-browns-future