Rainbow throws from quarterbacks on opposite ends of their careers may have done the trick.
The 37-year-old Batch completed 11 of 14 passes for 102 yards and a touchdown to bolster his hopes of playing a 15th season and the Pittsburgh Steelers held off a late rally by Clausen and the Carolina Panthers for a 17-16 preseason victory on Thursday night.
''It seems like over the years, this game dictated whether I was going to be around,'' Batch said. ''To go down there and put points on the board, those are things that coach wants to see. At the end of the day, as a player, you just want to make the decision tough for them. I think I did.''
The same goes for the 24-year-old Clausen, who ceded the starting job to Cam Newton last year and is now simply trying to beat out Derek Anderson as the team's top backup. Clausen passed for 173 yards and two touchdowns in one half of work, including a 79-yard score to rookie Lamont Bryant with 2:31 to play to bring the Panthers within a point. The 2-point conversion failed, however, and kicker Justin Medlock missed a 50-yard field goal with 32 seconds left.
Both teams sat the majority of their top players. Quarterback Ben Roethlisberger and defensive back Troy Polamalu, among several others, did not play for Pittsburgh, while Rivera gave Newton and wide receiver Steve Smith the night off.
That left plenty of time for guys who are fighting to survive Friday's final roster cuts, a group that includes Batch.
The Pittsburgh native and the elder statesman on the Steelers has been involved in a camp-long duel with Jerrod Johnson for the team's third quarterback spot. It's a familiar position for Batch, who survived roster cuts in each of the last two seasons thanks in part to injuries to usual backup Byron Leftwich.
Leftwich has stayed healthy this summer and injury issues at several positions - including offensive line and linebacker - have made it uncertain whether the Steelers will keep three quarterbacks on the roster.
Batch put together a pretty convincing argument he should stick around. He deftly drove the Steelers 80 yards on five plays the first time they got the ball, capping the drive with a rainbow strike to Sanders.
Batch floated the ball toward the goal line and Sanders split two defenders and made a spectacular diving catch.
''Obviously, when you connect like that, it makes you look good,'' Batch said.
Pittsburgh rookie running back/kick returner Chris Rainey appeared to make it 14-0 a few minutes later when he returned a punt 78 yards for a touchdown. The play was called back due to a holding penalty.
It happened again later in the quarter, when Rainey hauled in a punt at the Pittsburgh 10, made a defender grasp at thin air then dashed 90 yards for a score. That one came back too, thanks to another holding penalty.
Carolina used the reprieve to eventually tie the game.
Anderson struggled during his half of play - completing 8 of 18 passes for 91 yards - but did put together a 17-play, 73-yard drive that ended with Medlock's 31-yard field goal. It was the highlight of the night for Medlock, who beat out veteran Olindo Mare for the starting job earlier in the week. He had the distance on a 56-yard field goal attempt in the third quarter, but it sailed wide right and his game-winning attempt sailed wide left.
The Panthers tied it at 10 early in the second half when Clausen found jared green for a 3-yard touchdown pass.
Pittsburgh reclaimed the lead early in the fourth quarter when Batch found tight end Weslye Saunders for a 6-yard score.
The Steelers did allow a handful of starters to break a sweat, including nose tackle Casey Hampton. The 12-year veteran spent the first three weeks of training camp on the physically unable to perform list while recovering from offseason knee surgery. Still, Hampton vowed to be ready for the opener and he sprinted onto the field when he was introduced. The five-time Pro Bowl selection played throughout the first quarter and finished with two tackles.
''I'm out there playing, so I'm feeling pretty good,'' Hampton said. ''I told you I'd be ready to go when the season opens, that was my main goal.''
NOTES: Pittsburgh rookie LB Sean Spence, the team's third-round pick in the NFL draft, was taken off the field on a cart with a left knee injury in the third quarter ... Pittsburgh WR Mike Wallace, who signed his one-year tender on Tuesday, did not dress for the Steelers. Wallace will become eligible to start practice on Friday, though the Steelers don't return to the practice field until next week.