(The Sports Xchange) - Key forward LaMarcus Aldridge of the San Antonio Spurs is out indefinitely because of a minor heart arrhythmia, the team announced on Saturday.

"All parties have concluded that at the current time it is best for Aldridge to refrain from play until further tests and examinations are completed," the Spurs said in a press release.

Aldridge, a five-time All-Star, has the Spurs' second-leading averages in both scoring (17.3) and rebounding (7.4).

At the end of his rookie NBA season when he was with the Portland Trail Blazers, Aldridge was diagnosed in April 2007 with Wolff-Parkinson-White syndrome, which is an abnormality that can cause a rapid heartbeat.

He underwent a procedure to fix the problem and missed the final nine games of the season.

Four years later, he underwent the same procedure and missed time at the start of the 2011-2012 season when there was a recurrence of his condition.

The Spurs are already without forward Kawhi Leonard, their leading scorer, because of a concussion.