Man critical after being kidnapped and tortured in Sydney's west

A man is in a critical condition in hospital after it's believed he was kidnapped and tortured in Sydney's west.

Emergency crews found a 30-year-old man with injuries to his hands, face and feet on Wentworth Street at Greenacre about 8.30pm last night.

9News understands he was found covered in acid.

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"He was treated at the scene by NSW Ambulance paramedics," NSW Police said in a statement.

He remains in hospital in a critical condition.

Police are continuing to investigate the incident.

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Elsewhere in Sydney, a man has been charged overnight after he allegedly assaulted a woman during her evening runSydney's west.

The woman was jogging when a man, allegedly unknown to her, "grabbed her from behind and assaulted her" on Railway Parade in Lidcombe just before 7pm on December 29.

NSW Police previously released CCTV of the attack in January, which led to a 29-year-old man being arrested on Park Road in Auburn.

Police allege the man spat at officers and resisted his arrest.

"He was taken to Auburn Police Station where an outstanding warrant was executed for assault occasioning actual bodily harm, and stalk/intimate intend fear physical harm," NSW Police said in a statement.

"He was also charged with assault officer in execution of duty, and breach of bail."

The man was refused bail and is expected to appear at Paramatta Bail Court today.

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