Cleveland Browns wide receiver Dwayne Bowe has insisted that he is confident his side's offense will prove their doubters wrong.

The AFC North side struggled last season without the presence of All-Pro Josh Gordon, who has been suspended indefinitely by the NFL.

Mike Pettine's men moved to sign Bowe and Brian Hartline to bolster their receiving corps, but critics still feel that the Browns will find life tough on offense in the 2015 season, although the 30-year-old is determined to prove them wrong.

"I am very, very confident," Bowe told reporters. "We have a talented core, our group. All it takes is time. We'll let the doubters doubt.

"When we get on this field and work, we know what we've got as a team, the chemistry.

"When week one comes around, we're going to show a lot of doubters how a high-powered offense really moves."

Bowe has recorded 532 receptions for 7,155 yards and 44 touchdowns in his eight-year career.