2009 US Open champion Juan Martin del Potro leads a group of four newly committed players who have signed with the Delray Beach Open by The Venetian® Las Vegas to play in its ATP World Tour event February 13-22, marking its best pre-tournament singles field in its history. Also announcing their participation in Delray Beach are top American John Isner, 2012 Delray Beach champion Kevin Anderson and rising world Top 25 Alexandr Dolgopolov. The latest group of players, with the earlier signing of 2014 US Open champion Marin Cilic, gives the tournament four Top 25 players to lead its 2015 field. Cilic (No. 9), Anderson (No. 16) and Isner (No. 18) also all finished in the 2014 year-end Top 20 rankings. “Two US Open champions, three Delray Beach champions, our top American – that says it all about our singles draw,” said tournament director Mark Baron. “With the world No. 1 Bryan Brothers leading our doubles draw, we’ve established 2015 as a year to see champions play in Delray Beach.” In addition to the ATP World Tour tournament, the Delray Beach Open by the Venetian also features an ATP Champions Tour competition that leads off the 10-day event starting on Friday of President’s Weekend and wrapping up on Sunday (Feb. 13-15, 2015). For more information visit www.YellowTennisBall.com.