Scottie Scheffler is the new number one-ranked golfer in the world after defeating Kevin Kisner 4 and 3 in the WGC Match Play final on Sunday.

The 25-year-old American has dethroned Spain's Jon Rahm to become only the 25th man to hold the top spot on the Official World Golf Ranking since its inception in 1986.

It is Scheffler's third professional tour win of the season, after triumphs at the Phoenix Open last month and the Arnold Palmer Invitational three weeks ago.

Kisner, the Match Play champion in 2019 when he beat Matt Kuchar 3 and 2, struggled to best his opponent, who went 1up off the second tee and subsequently never relinquished his lead.

Scheffler, who saw off a Dustin Johnson fightback to win 3 and 1 in the semi-finals, built a commanding early advantage through the sixth hole, emerging 3up with a dozen to play,

Neither man was able to get the better of the other until the 14th hole, when Scheffler shot a smart birdie against Kisner's bogey to move four up with just four holes remaining.

It left Kisner needing to win on the 15th to keep the match going, but the 38-year-old could not force the game on, and with just two putts needed for the title, Scheffler made no mistake on the green.

Scheffler, who had ranked fifth in the world heading into the Match Play, becomes the ninth American to top the men's world rankings, and the first new USA native to rank first since Brooks Koepka in 2018.

Elsewhere, Johnson missed out on a podium finish as the two-time major champion went down 3 and 1 to Corey Conners.

The Canadian held his nerve from the 12th hole onwards after dropping back to a two-hole lead to claim third place on the 17th hole with a birdie.