Spieth takes a narrow lead in Houston

Jordan Spieth will take the narrowest of leads into the final day of the Shell Houston Open after a fantastic five under par 67 took him one shot clear of the chasing pack.

The in-form 21-year-old has five top 10 finishes from his seven tournaments this year and will be looking for his second PGA Tour title of 2015 – having won the Valspar Championship last month – on Sunday.