Brooks Koepka, Matt Kuchar and Jordan Spieth led the way after day one of the 146th Open Championship but Charl Schwartzel was just a shot back at Royal Birkdale.
The American trio posted rounds of 65 to get to five under before Schwartzel produced a birdie-birdie finish to move alongside Paul Casey, with English duo Richard Bland and Ian Poulter, Spaniard Rafa Cabrera Bello and Canadian Austin Connelly in the group just a shot further back.
This is Koepka's first European Tour event since he won the US Open Championship as he goes in search of back-to-back Majors, while Spieth won both of his Major titles in 2015 as he claimed the Masters Tournament and US Open.
Kuchar played the Aberdeen Asset Management Scottish Open last week as part of his Open preparations and has eight top tens in golf's four biggest events as well as an Olympic Bronze Medal.
Schwartzel is going in search of a second Major after winning the Green Jacket in 2011 and already has 11 European Tour titles to his name.