Houston Rockets guard Kevin Porter Jr. has agreed to a four-year, $82.5 million contract extension, his agent Sam Permut of Roc Nation Sports told ESPN on Monday. The extension has a unique structure that permits for significant upside for Porter and protections for the Rockets. The deal’s first season is guaranteed, and future seasons have several mechanisms to fully guarantee, sources said. Porter, 22, landed the extension ahead of Monday’s 6 p.m. ET deadline for players out of the NBA draft class of 2019. Houston GM Rafael Stone and coach Stephen Silas have invested significant time and energy into Porter on and […]