Cooper (abdomen) is participating in Wednesday's OTA session, Mary Kay Cabot of The Cleveland Plain Dealer reports.
Cooper is taking part in on-field drills for the first time since undergoing core muscle surgery in February, but the receiver did not participate in 7-on-7 work. Browns head coach Stefanski also said that the soon-to-be 29-year-old receiver is on track to be at full strength by the start of training camp, per Matt Fontana of 850 ESPN Cleveland. A full offseason to build chemistry with quarterback Deshaun Watson could help Cooper take another step forward heading into his second year in Cleveland's scheme, in which he once again projects to act as the No. 1 target.