Rain and fog prevented Tiger Woods marking his US tour return in style – but Northern Ireland’s Darren Clarke managed a hole-in-one before bad weather brought the first round to an early close at the Buick Invitational in La Jolla today.

Padraig Harrington lies in second place having finished his second round of the US Masters on five under - four strokes behind leader Vijay Singh.

Padraig Harrington maintains his lead at the US Masters on five under, where he is tied with Phil Mickelson.