Golf: Thomas and Mickelson in playoff in Mexico

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PGA: WGC - Mexico Championship - Final Round

Mar 4, 2018; Mexico City, MEX; Justin Thomas plays his shot from the second tee during the final round of the WGC - Mexico Championship golf tournament at Club de Golf Chapultepec. Orlando Ramirez-USA TODAY Sports

(Reuters) - Americans Justin Thomas and Phil Mickelson were headed for a playoff at the WGC-Mexico Championship after finishing regulation tied at 16-under-par 268 on Sunday.

Thomas eagled the last hole to complete a seven-under 64 before Mickelson shot 66 to force the playoff at Club de Golf Chapultepec in Mexico City.

(Reporting by Gene Cherry in Salvo, North Carolina, editing by Ed Osmond)