The Houston Rockets are set for a Thursday night showdown against the Memphis Grizzlies. Here's what you need to know before tip-off in this conference battle.

During his time with the Grizzlies, Allen was named to the NBA’S All Defensive First Team in 2012, 2013, and 2015.

Memphis Grizzlies guard Marcus Smart (36) warms up before playing against the Boston Celtics at TD Garden. Mandatory Credit: Paul Rutherford-Imagn Images / Paul Rutherford-Imagn Images GG Jackson ...