Pittsburgh Steelers wideout Mike Wallace is back practicing with the first-team offense after holding out the entire preseason. The receiver told the Pittsburgh Post-Gazette he felt at home in the team\'s new offense under first-year offensive coordinator Todd Haley. \"He didn\'t make any mistakes in the no-huddle drill, so he looked good,\" quarterback Ben Roethlisberger said, although he claimed not to know how much Wallace will play in the team\'s opener, a rematch against Denver, who defeated the Steelers in overtime of a wildcard playoff game last season. The Steelers were eliminated on the first play of overtime when former Broncos quarterback Tim Tebow threw an 80-yard touchdown pass to end the game. It remains to be seen how much of an immediate impact Wallace, who caught a career-high 72 passes for 1,193 yards and eight touchdowns last season, will have on the Steelers\' new-look offensive attack. \"I\'m sure this week will kind of determine that, how\'s he practicing, how\'s his wind? He\'s not going to play every single play, no one ever does. I think he\'ll be in there quite a bit, though,\" Roethlisberger said. Wallace will play out the season under the $2.7 million one-year tender the Steelers gave him in the offseason. The team as a rule does not negotiate contracts during the season, the Post-Gazette noted.