Hazel Irvine and Dan Walker present live coverage of day one of the 144th Open from St Andrews.

With 2014 winner Rory McIlroy out of contention due to an ankle injury, attention is focused on 21-year-old Jordan Spieth, who is attempting to win his third major in a row.

South Africa's Louis Oosthuizen will be hoping to resurrect the form that saw him romp to the Open title the last time the Championship was held on the world-famous Scottish course in 2010. Show less