Former Open champion Louis Oosthuizen held on to a share of the lead when the weather-affected US Open resumed at Torrey Pines on Friday.

Oosthuizen faced a birdie putt on his penultimate hole when play was suspended late on Thursday evening, a legacy of a 90-minute fog delay earlier in the day.

The South African raced the birdie attempt seven feet past the hole but calmly holed the return, before also parring the ninth to complete a 67.

That left Oosthuizen alongside Russell Henley on four under par, although he faced a quick turnaround before beginning round two.

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