Chark (chest/back) is undergoing further testing Monday morning, John Reid of The Florida Times-Union reports.
Coach Doug Marrone sounded optimistic about his No. 1 receiver Friday, but it's at least a little concerning that Chark needs more tests to evaluate his injuries. He was held out of Thursday's 31-13 loss to the Dolphins, and fantasy managers should consider him questionable to return for Week 4 at Cincinnati.