He'll join Shane Lowry in the field for WGC event in Memphis this week.
Spain's Jon Rahm believes he deserves his ranking as golf's world number one.
The Ryder Cup star replaced Rory McIlroy at the summit of the rankings after victory at the Memorial Tournament.
Rahm features in this week's WGC Fed Ex St Jude Invitational in Memphis as will Offaly's Shane Lowry.
The Spaniard says you have to adopt the mentality of a winner:
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