After starting his Thursday with an eagle on the second hole en route to a first-round 67, Matt Fitzpatrick is right at the top of the British Open leaderboard. A four-under start at Royal Portrush is nothing to sneeze at,

Who will win the 153rd Open Championship? Our experts dive into all the twists and turns of the year's final major

Phil Mickelson and Lee Westwood are offering reminders that the British Open doesn't discriminate against older players.

Maybe it's just one round, but Thursday at The Open, 50-somethings Lee Westwood and Phil Mickelson shot under par.

Jacob Skov Olesen and Haotong Li held the early Thursday lead at 4 under while Mickelson, 55, had his lowest opening round in an Open since 2016.