Dominic Thiem is through to the final of the Argentina Open after stunning defending champion Rafael Nadal.
Martin Klizan saved three match points against Nicolas Mahut to book a spot in the Rotterdam Open final.
Belinda Bencic defeated Darya Kasatkina to set up a St. Petersburg final against Roberta Vinci.
Top seed Rafael Nadal and defending champion David Ferrer feature in Brazil between 15-21 February.
Top seeds Serena Williams and Angelique Kerber have withdrawn from the WTA Dubai Open.
Top seed Venus Williams beat Yulia Putintseva of Kazakhstan 7-5 6-3 to reach the final of the Taiwan Open.
Top seed and defending champion Rafael Nadal is through to the semi-finals of the Argentina Open.
Second seed Marin Cilic suffered a surprise defeat to Philipp Kohlschreiber in the quarter-finals of the Rotterdam Open.
The ongoing independent review of integrity in tennis is expected to take at least a year, according to the sport's governing bodies.
Rafa Nadal returned to winning ways with a second round victory over Juan Monaco at the Argentina Open.
Dustin Brown hits a magnificent behind-the-back trick shot to flummox his opponent - check it out.
Third seed Gilles Simon is out of the Rotterdam Open after losing to Alexander Zverev of Germany
Gael Monfils and Marin Cilic booked their places in the Rotterdam Open quarter-finals with hard fought victories on Wednesday.
Nigel Sears, the coach of Ana Ivanovic and father of Andy Murray's wife Kim Sears, has returned to work 18 days after collapsing.
Six-time Grand Slam winner Maria Sharapova has withdrawn from the Qatar Open due to a recurrence of an arm injury.
Gilles Muller and Gael Monfils were among the victors at the Rotterdam Open while fourth seed David Goffin was beaten by Marcos Baghdatis.
Two tennis umpires have been banned and four more suspended while investigations are undertaken by the sport's integrity unit.
Andy Murray has become a father for the first time after his wife Kim gave birth to a girl.
Rafa Nadal will join Andy Murray in the field for the Aegon Championships at Queen's Club this summer.
Andy Murray's decision to take the whole of February off won't unduly affect his ranking, says Barry Cowan.