PORTRUSH, Northern Ireland – Only Dustin Johnson has a chance to leapfrog Brooks Koepka and return to No. 1 in the world rankings.
To reclaim the top spot, Johnson must win The Open and have Koepka finish worse than a two-way tie for third. No other player can ascend to No. 1 this week.
Koepka has been the top-ranked player in the world for the past two months, since he captured the PGA Championship over Johnson.
As for the other players in the field, Tiger Woods can rise as high as No. 2 in the world based on his play this week at Royal Portrush.