Dominic Thiem fought from 5-2 down in the final set and held off a match point before upsetting the eighth-seeded Marcel Granollers 2-6, 6-3, 7-5 in the second round of the Hamburg Open on Tuesday.
Second-seeded David Ferrer was ousted from the Barcelona Open by a Russian opponent for the second straight year and defending champion Rafael Nadal labored to victory on Wednesday.
Rafael Nadal has mastered the dirt season for close to a decade, but it's his main rival, Novak Djokovic, who heads into Monte Carlo en fuego, writes Greg Garber.
Novak Djokovic looks to continue his recent dominance over archrival Rafael Nadal at the Monte Carlo Masters, where he beat the Spaniard in the final last year, and boost his confidence as he bids to win his only missing major at the French Open.
Novak Djokovic is hoping to parlay his spring sweep at Indian Wells and Miami into a maiden French Open crown.
Novak Djokovic, who won Indian Wells, is peaking at the right time, but not all his Big Four cohorts can say the same, writes Greg Garber.
Grigor Dimitrov came back to beat second-seeded Andy Murray 4-6, 7-6 (5), 7-6 (3) in a marathon match that ended early Saturday to book a spot in the Mexican Open final.
Top-seeded David Ferrer withdrew from his Mexican Open quarterfinal against South Africa's Kevin Anderson in the second set Thursday with a left leg strain.
Top-seeded David Ferrer defeated fellow-Spaniard Feliciano Lopez 7-6 (1), 6-2 on Wednesday to advance to his fifth-straight Mexican Open quarterfinals.
Top-ranked Rafael Nadal survived a scare at the Rio Open on Saturday, fighting off two match points before defeating fellow Spaniard Pablo Andujar 2-6, 6-3, 7-6 (10) to advance to the final.
Top-seeded Rafael Nadal reached the semifinals of the Rio Open, showing no problems with a sore back in defeating Joao Sousa of Portugal 6-1, 6-0 on Friday.
Two-time defending champion and top-seeded David Ferrer of Spain defeated Santiago Giraldo of Colombia 6-4, 7-6 (1) on Thursday to reach the quarterfinals of the Copa Claro clay-court tournament.
Second-seeded Fabio Fognini of Italy reached the quarterfinals of the Copa Claro Wednesday, defeating Leonardo Mayer of Argentina 6-7(4), 6-3, 6-2.
Juan Martin del Potro, Jo-Wilfried Tsonga and Roger Federer find themselves at crossroads as the 2014 season kicks off.
Top seed Rafael Nadal, second seed David Ferrer and third seed Andy Murray opened the new tennis season with first round wins on the last day of 2013.
Kei Nishikori of Japan beat Jo-Wilfried Tsonga 1-6, 7-6 (4), 7-6 (7) in the second round of the Paris Masters on Tuesday, ending the Frenchman's bid for a spot in the World Tour Finals.