This was sudden. LaMarcus Aldridge, who recently signed with the Brooklyn Nets abruptly retired due to issues with his heart. In his last game, Aldridge experienced an irregular heartbeat, and after consulting with doctors, the former Trail Blazer elected to call it a career. Aldridge was the second overall pick in the 2006 NBA Draft from Texas, where he was the Big 12 Defensive Player of the Year. Taken by Portland, Aldridge showed gradual improvement, going to his first All-Star Game in 2012, and would appear in six more. A one-time Second Team All-Star, Aldridge averaged over 20 Points per Game seven times,…