Fifth seed Tomas Berdych came back from losing the opening set against South Africa’s Kevin Anderson to advancing into the last four of the Paris Masters on Friday.
The Czech battled out a 6-7(4) 6-4 6-4 win over 12th seed Anderson to claim his 54th tour-level win and also qualify for the ATP World Tour Finals for a fifth successive year.
He joins Novak Djokovic, Roger Federer, Stanislas Wawrinka, Marin Cilic and Andy Murray at the ATP final showdown.
Berdych, 29, was a semi-finalist at the season-finale in 2011 but lost to Frenchman Jo-Wilfried Tsonga. His progress to the semi-finals in Bercy is his eighth at tour-level this year.
He will next face Milos Raonic on Saturday, after the seventh seed beat second seed Federer 7-6(5) 7-5 to advance.
Anderson, who knocked third seed Stanislas Wawrinka out in the 3rd round on Thursday, ends 2014 with a 38-24 win-loss record.
Canadian Raonic fired 21 aces en route to his first win over 17-time Grand Slam champion Federer in seven attempts. It was also his first win over a Top 3 player and it keeps his hopes of making the ATP Tour Finals for the first time alive.
If Kei Nishikori beat David Ferrer in the last quarter-final of Saturday, the field for the London showdown will be complete, with Nishikori and Raonic clinching the final two slots. However, all Raonic needs to succeed in the Race to London is go one round further than Ferrer.
Federer defeat gives Djokovic a chance to stretch his lead in their battle to finish the year as No. 1.