Rotterdam, The Netherlands (Sports Network) - Juan Martin del Potro beat Grigor Dimitrov in Saturday's semifinals at the $1.7 million ABN AMRO World Tennis Tournament.

The second-seeded del Potro defeated Dimitrov by a 6-4, 6-4 margin on the indoor hardcourts at Ahoy Rotterdam.

The former U.S. Open champion del Potro will appear in his second straight Rotterdam final. Roger Federer beat the Argentine in last year's marquee finale here.

Del Potro will play for his 14th career title when he faces either Gilles Simon or Julien Benneteau in Sunday's final.

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