They may not have teamed up in the NBA, but LeBron James and Ben Simmons sure form an imposing pick-up game duo.
Four-time NBA MVP James and his protege Simmons threw down dunks, dished out assists and crossed-up opponents as part of the same team during a five-on-five scrimmage at New York's Life Time Athletic gym.
In the opening clip of the online footage, posted by NBA trainer Chris Brickley, the new Los Angeles Laker cleaned up a Simmons miss with a huge put-back jam.
The 22-year-old Australian teed up James for multiple three-pointers as the three-time NBA champion repaid the favour with a perfectly-timed pass for the reigning rookie of the year to throw down an alley-oop.
The pair, both in the management stable of Klutch Sports, also posed for a photo after a workout earlier this week.
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James' management met with Philadelphia officials over the off-season as he weighed up joining Simmons' Sixers following Cleveland's 4-0 NBA Finals loss to the Golden State Warriors.
But the 33-year-old free agent settled on joining the Lakers on a four-year, $US154 million ($A214 million) contract.
Simmons will have to wait until January 30 next year to go head-to-head with the King in an NBA regular season game on James' new home floor at Staples Centre.
