After missing the Carolina Panthers’ first seven OTA practice sessions with a strained hamstring, receiver Kelvin Benjamin returned to the field Tuesday morning, according to a source.Before Phase 3 of OTAs started, the sense was Benjamin would be out until training camp. The Panthers didn’t want to rush their top wideout back after he suffered the injury last month when he slipped on wet turf while making a cut. But after Benjamin increased his work on the side Monday, coach Ron Rivera revealed Benjamin could practice as soon as Tuesday.Rivera also said he hoped the Panthers would get Bené Benwikere back from his sore hamstring some time this week, but it’s unclear if the cornerback joined Benjamin in his return.The Panthers will wrap up OTAs Thursday and then have a mandatory three-day minicamp next week.