• Flying the flag: Autographed flags are seen during the practice round
  • All smiles: Tiger Woods and Simon Khan share a laugh
  • Golfing favourite: Rory McIlroy signs his autograph for keen fans at Merion Golf Club...
  • ...before hitting an approach shot
  • Lee Westwood: Hits a shot from a bunker during practice
  • Taking note: Darren Clarke talks with his caddie as he prepares for his assault on the US Open
  • Helping hand: Staff help push a golf cart through the mud following the poor weather in Pennsylvania
  • Watchful eye: Graeme McDowell chips as golf instructor Pete Cowan looks on
  • Fully focused: David Toms hits a tee shot on the 14th hole during practice
  • Good luck: Spain's Jose Maria Olazabal (left) embraces compatriot Sergio Garcia during the practice round
  • Good practice: Edward Loar hits from a bunker
  • Turf-iffic! Luke Donald hits an approach shot at Merion Golf Club

2013 - Tuesday practice

Flying the flag: Autographed flags are seen during the practice round