Scott Stallings in front at Memorial Tournament

American Scott Stallings holds a one-shot lead after the opening round of the Memorial Tournament in Ohio.

American Scott Stallings holds a one-shot lead after the opening round of the Memorial Tournament in Dublin, Ohio.

An eagle on the seventh saw the 27-year-old record a round of 66 to leave him six-under-par.

Fellow countrymen Erik Compton and Spencer Levin are each on five-under, with Blake Adams one of seven competitors on three-under.

Despite a double bogey on the final hole, Tiger Woods carded a two-under round of 70.

It was a mixed day for World number one Luke Donald and Rory McIlroy as both men also holed double bogeys to put themselves on one-under.

content continues after the advert