The Cleveland Browns were awaiting further medical tests on Joe Thomas, their durable Pro Bowl left offensive tackle who injured his right leg at practice when massive rookie nose tackle Danny Shelton inadvertently rolled up on it during an 11-on-11 drill.
Thomas, who has never missed a play in his eight-year NFL career, screamed in pain as his leg was struck from behind by the 339-pound Shelton.
Thomas limped off and was examined by trainer Joe Sheehan, who tested the stability in the lineman's knee and looked at his calf area and ankle.
Newton in scuffle
Carolina quarterback Cam Newton was...