The Brooklyn Nets announced Ben Simmons will miss at least another three games with a left lateral upper calf strain.

Simmons exited Monday's 109-102 win over the Orlando Magic due to left knee soreness, according to the Nets.

Brooklyn head coach Jacque Vaughn clarified prior to Wednesday's game against the Washington Wizards that Simmons was dealing with a new issue, beyond the knee complaint, which saw him miss six games earlier this season.

"It's the knee, but the back of the knee," Vaughn told reporters. "He was grabbing his knee during the game and said he needed to come out.

"It ended up being the back of the knee, so it's the upper part of the calf."

Simmons, who is averaging 8.4 points, 6.6 rebounds and 5.8 assists this season, will miss upcoming games against the Wizards, the Toronto Raptors (Friday) and the Boston Celtics (Sunday).

The 26-year-old had been enjoying his best run for the Nets over the past fortnight since his February trade from the Philadelphia 76ers, scoring double-digit points in six straight games.

Vaughn added that there was no specific event when Simmons suffered the injury, meaning they could commence his return to play on managed minutes.