UPDATE 1-Tennis-Memphis International men's singles semifinal results

Feb 23 (Infostrada Sports) - Results from the Memphis International Men's Singles Semifinal matches on Saturday Feliciano Lopez (Spain) beat Denis Istomin (Uzbekistan) 6-2 3-6 6-3 5-Kei Nishikori (Japan) beat Marinko Matosevic (Australia) 6-4 (Matosevic retired)