Bridgestone

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Scott Hend, from Australia, chips onto the 17th green during the third round of the Bridgestone Invitational golf tournament at Firestone Country Club, Saturday, Aug. 5, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Rory McIlroy, from Northern Ireland, tees off on the third hole during the third round of the Bridgestone Invitational golf tournament at Firestone Country Club, Saturday, Aug. 5, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Zach Johnson tees off on the third hole during the third round of the Bridgestone Invitational golf tournament at Firestone Country Club, Saturday, Aug. 5, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Thomas Pieters, from Belgium, lines up a putt on the second green during the third round of the Bridgestone Invitational golf tournament at Firestone Country Club, Saturday, Aug. 5, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Thomas Pieters, from Belgium, tees off on the third hole during the third round of the Bridgestone Invitational golf tournament at Firestone Country Club, Saturday, Aug. 5, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jordan Spieth looks at his yardage book on the first hole during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Zach Johnson hits to the 17th green from the fairway during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Hideki Matsuyama, from Japan, pumps his fist after making a birdie on the eighth hole during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jordan Spieth, right, talks with Rory McIlroy, from Northern Ireland, on the first hole during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Rory McIlroy, from Northern Ireland, drops his club after teeing off on the ninth hole during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Thomas Pieters, from Belgium, waits to putt on the first green as rain falls during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jimmy Walker reacts after missing a birdie putt on the 16th hole during the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jimmy Walker acknowledges the gallery after finishing the second round of the Bridgestone Invitational golf tournament at Firestone Country Club, Friday, Aug. 4, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Rory McIlroy, from Northern Ireland, hits to the 13th green during the first round of the Bridgestone Invitational golf tournament at Firestone Country Club, Thursday, Aug. 3, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jordan Spieth hits to the 13th green during the first round of the Bridgestone Invitational golf tournament at Firestone Country Club, Thursday, Aug. 3, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Phil Mickelson hits out of the trap on the fourth hole during the first round of the Bridgestone Invitational golf tournament at Firestone Country Club, Thursday, Aug. 3, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jordan Spieth lines up his putt on the 13th hole during the first round of the Bridgestone Invitational golf tournament at Firestone Country Club, Thursday, Aug. 3, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Thomas Pieters, from Belgium, tees off on the fifth hole during the first round of the Bridgestone Invitational golf tournament at Firestone Country Club, Thursday, Aug. 3, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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Jordan Spieth, right, and Rory McIlroy, from Northern Ireland, talk before teeing off on the 14th hole during the first round of the Bridgestone Invitational golf tournament at Firestone Country Club, Thursday, Aug. 3, 2017, in Akron, Ohio. (AP Photo/Tony Dejak)

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FILE - In this Aug. 28, 2016 photo, Rory McIlroy of Northern Ireland, right, and his caddy, J. P. Fitzgerald, look down the fairway before McIlroy tees off from the first hole during the final round of The Barclays golf tournament in Farmingdale, N.Y. McIlroy parted ways with J.P. Fitzgerald after the British Open and will use his best friend, Harry Diamond, as his caddie in the Bridgestone Invitational and the PGA Championship next week. (AP Photo/Kathy Kmonicek), file