Injury cloud: Tim Cahill.

Injury cloud: Tim Cahill. Photo: Getty Images

Tim Cahill is under an injury cloud in the lead up to the World Cup after the striker damaged his hamstring playing for the New York Red Bulls in a Major League Soccer match.

Cahill was forced off after just 27 minutes in the New York side's 1-1 draw with Chivas USA, the Australian signalling to the bench that his right hamstring was the source of serious discomfort.

The 34-year-old appeared to suggest the muscle had been torn as he headed straight to the changing room for treatment.

Red Bulls manager Mike Petke said his hope was that Cahill had "strained rather than pulled it" but was unsure of the seriousness of the injury.

Cahill will undergo tests on Monday to ascertain the extent of he damage.

Striker Bradley Wright-Phillips told AAP: "I spoke to Tim at halftime and he seemed OK.

"He was smiling which is always a good sign but hopefully the scans on Monday will show no serious damage. It doesn't help us when our big players like Tim have to go off so early."

With a dearth of goalscorers the Socceroos will be hoping the injury isn't serious, though Cahill has a reasonable window of time to recover, with Australia's last match before the World Cup a May 26 clash with South Africa in Sydney.

The Socceroos' first game in Brazil is against Chile in Cuiaba on June 13.

Cahill hobbled off four minutes after Chivas took the lead through an Erick Torres penalty and despite a barrage of second half pressure, it was left to midfielder Peguy Luyindula to spare home blushes with a 94th-minute equaliser.

The draw means Cahill's struggling side is still waiting for its first win after four games of the MLS season.

AAP