Johnson on top of the world after Memphis victory

LOS ANGELES— Dustin Johnson warmed up for the US Open by reclaiming the world number one ranking, cruising to a six-shot victory at the Fedex St.Jude Classic.

Johnson, who started the day alongside Andrew Putnam at the top of the leaderboard, held his nerve to close with a four-underpar 66 at TPC Southwind in Memphis, Tennessee.

The 33-year-old sealed his win in emphatic style, holing out for a sensational eagle two on the 18th to roars from the gallery.

Johnson finished the tournament with a fourround aggregate 261, 19 under par.

"What a cool way to end the day to hole that shot on 18," Johnson said afterward.

"A lot of good things happened this week. I knew coming in this week I was swinging really well and I had confidence in my game."

Putnam's challenge wilted after a disastrous double-bogey on the parfour first which left Johnson with sole possession of the lead.

The win ensures Johnson will return to the top of the rankings as the golf world prepares for the second major of the season at next week's US Open at Shinnecock Hills, New York.

Johnson had ceded his number one spot to Justin Thomas last month following a 64-week reign at the top of the standings.

Sunday's victory was the 18th PGA Tour win of Johnson's career, and his first since a triumph at the Sentry Tournament of Champions in Hawaii in January.