EDMOND, Okla. - The U.S. Senior Open teed off this morning at Oak Tree National in Edmond.
Thousands of fans came to see Oak Tree's own Bob Tway and Gil Morgan as well as tournament favorite Bernhard Langer.
Once the official tournament begins on Thursday, autographs from these famous golfers are going to be hard to come by.
While braving the heat, tournament officials want fans to remember to stay hydrated.
Fans are also encouraged to bring their own chair and set it up in the shade.
Golfer Estabon Toledo used his iPad golf bag during the practice rounds and interacted with fans.
The one time boxer turned golfer spent seven years on the PGA tour and picked up two wins on the Champions Tour in 2013.