Houston Texans offensive tackle David Quessenberry has been diagnosed with lymphoma, and will be placed on the reserve-non-football illness list while he gets treatment.

According to a statement from his agents, Quessenberry thought he was having a persistent chest cold, and was diagnosed last week after complaining of shortness of breath during a practice

“The goal of David’s treatment is to cure the disease, so he can return to the life that he has worked so hard to earn,” the statement read. “David is extremely positive and determined to win this fight against cancer. Our love for David is strong and we are praying for him and his family during this difficult time. All of your positive thoughts and prayers for David are encouraged and appreciated.”

“Our medical community here in Houston is the best in the world,” Texans General Manager Rick Smith said. “We are extremely confident in the care and treatment David will receive. He is a fighter and a courageous young man and we look forward to his full and complete recovery. We will continue to support him and his family and look forward to his return to the team.”