The Golden State Warriors' move to sign Andrew Bogut as an "insurance policy" appears to be a masterstroke after it was confirmed NBA All-Star centre DeMarcus Cousins has suffered a potential season-ending injury.

Cousins, who spent a year recovering from a left Achilles tendon tear, suffered a torn left quadriceps muscle pursuing a loose ball in the Warriors' historic game two playoff loss to the Los Angeles Clippers.

"The injury will sideline Cousins indefinitely and he will begin rehabilitation immediately," the Warriors announced after their big man underwent an MRI on Wednesday (AEST).

The San Francisco Chronicle reported the Warriors are preparing for the possibility of playing the rest of the playoffs – a two-month campaign if they make their fifth-straight championship series – without Cousins.