18 July 2013 Last updated at 22:36

Graeme McDowell frustrated after opening four-over-par 75 at Muirfield

Graeme McDowell says scoring was difficult after carding a four-over-par 75 in the first round of the Open Championship at Muirfield.

The Portrush player was playing with Tiger Woods, who posted a two-under 69.

McDowell has won three tournaments this season, including the French Open less than two weeks ago.