Cilic, Monfils advance to Rotterdam quarterfinals
Marin Cilic holds off Gilles Muller, Gael Monfils defeats Borna Coric and Gilles Simon cruises past Robin Haase in the second round in Rotterdam.
Nishikori: Top four rank the target
Kei Nishikori's aim for 2016 is to cement himself in the top four of the world rankings, having fallen from fourth spot.
Nadal to return at Argentina Open
Rafael Nadal will compete for the first time since his Australian Open exit when he enters the Argentina Open as top seed.