Magdalena Rybarikova cruised to a 6-2 6-2 victory over Daria Kasatkina to set up a second-round clash with top seed Simona Halep at the Stuttgart Open.
The UEFA Champions League semi-finals get underway, plus Celtic hosts Old Firm foe Rangers in the Scottish Premiership LIVE on beIN SPORTS this week.
Late call-up Madison Keys put defending champion United States through to a Fed Cup final against the Czech Republic on Monday (AEST).
Rafael Nadal retained his Monte Carlo Masters crown and his place at the top of the world rankings with victory over Kei Nishikori.
Petra Kvitova and Karolina Pliskova both recorded singles victories as Czech Republic finished day one of their Fed Cup semi-final with Germany 2-0 ahead.
Miami Open: Stephens v Ostapenko