Redskins quarterback Robert Griffin III throws a pass during Washington’s loss to the Pittsburgh Steelers Sunday (Justin K. Aller/Getty Images)

Quarterback Robert Griffin III is coming off a subpar performance statistically in the Washington Redskins’ loss Sunday at Pittsburgh.

 Griffin’s numbers were affected greatly by the ten passes his receivers dropped, according to Coach Mike Shanahan’s count. But he said Wednesday that he didn’t consider his play to be good enough, either.

 “Obviously I didn’t play well enough to help us win the game,” Griffin said.  Griffin said he has spoken to his receivers and remains confident in them.

Entering his first NFL matchup this weekend with Carolina Panthers quarterback Cam Newton, Griffin said he will leave comparisons between the two former Heisman Trophy winners to the media.

“It’s not my job to try to compare,” Griffin said.

Griffin said he watched Newton’s play last season, when Newton was a rookie with the Panthers, but didn’t spend much time studying Carolina’s offense during the offseason.

He said he would rather be compared to a Super Bowl winner such as Aaron Rodgers of Green Bay.