Australian star Ben Simmons has missed out on selection for the NBA All-Stars Game, with Kemba Walker preferred over the Philadelphia 76ers rookie.

The Melbourne-born guard-forward's latest opportunity to make the February 18 game in Los Angeles arose when All-Star New York Knicks big man Kristaps Porzingis suffered a season-ending anterior cruciate ligament tear.

Ben Simmons has been overlooked for the NBA All-Stars again. Credit:AP

Simmons' teammate Joel Embiid made a passionate plea to league commissioner Adam Silver on Wednesday to include Simmons, but it was to no avail.

Silver selected Charlotte Hornets guard Walker to take Porzingis’ place in Team LeBron.