Man, 60, bashed and robbed in Sydney park

Two men have been charged after they allegedly bashed and robbed a 60-year-old man at a park in Sydney's southwest.

Neville Shaw was set upon by four men at Koshigaya Park in Campbelltown about 8pm Friday

He was helped by passers-by and taken to Campbelltown Hospital.

"I cut through Koshigaya Park to Woolworths and then that was it, just a blank after that," Mr Shaw told the Seven Network on Saturday.

"They just come out of nowhere."

Police have arrested two men, 19 and 20, who appeared in Parramatta Local Court on Saturday charged with aggravated robbery, and are searching for two others.