Jordan Spieth posted a solid first round but needs to change his approach at the Cognizant Classic, as so many are taking advantage of scoring.

Also in the Cognizant field are three top-20 players in the world – Russell Henley (17), Sepp Straka (18) and Shane Lowry (19) – and amateur Luke Clanton, who is a made cut away from a PGA Tour card and playing on a sponsor invite.