Juan Lopez lost part of his leg a few years ago because he wasn't managing his diabetes well. Doctors were able to save his other leg through hyperbaric oxygen therapy. Lopez is an active pool player who plays at senior centers frequently. JEFF LAUTENBERGER/Tulsa World

Juan Lopez, right, talks with Lee Klahr between games of pool during a tournament at the Owasso Senior Center on Oct. 4, 2011. Lopez defeated Klahr and went on to place third in the tournament which had 31 other seniors. JEFF LAUTENBERGER/Tulsa World

Juan Lopez racks up billiards balls during a multi-state senior pool tournament at Magoo's on July 30, 2011. Lopez plays frequently at the Owasso Senior Center. JEFF LAUTENBERGER/Tulsa World

Juan Lopez and Vickie Lopez, his wife of 37 years, joke on a bench after a walk along the River Parks trail on Oct. 5, 2011. Vickie doesn't involve herself much with Juan's pool playing but the couple is involved with other activities at the senior center. JEFF LAUTENBERGER/Tulsa World

Juan Lopez at a monthly pool tournament at the Owasso Senior Center on Oct. 4, 2011. JEFF LAUTENBERGER/Tulsa World