Novak Djokovic ruined Robin Soderling's hopes of making the World Tour Finals by edging past the Swede 6-4 1-6 6-3 to reach the Paris Masters semi-finals.
The world number three Djokovic, playing in the quarter-finals of the indoor event for the first time, will face world number two Rafael Nadal or defending champion Jo-Wilfried Tsonga for a place in the final.
The World number 10 Soderling's defeat means the French Open runner-up will not go to London for the November the 22nd to 29th season finale for the world's top eight players.
Serbia's Djokovic managed a break early in a first set featuring plenty of exciting rallies.
Soderling broke back to level the set at 4-4 but Djokovic captured the Swede's serve again immediately and then served for the set, wrapping it up with his opponent hitting a backhand wide.
Soderling fought back in the second set, taking just 28 minutes to win it with an ace.
The third set was tight until Soderling dropped serve by netting a backhand to hand Djokovic a 5-4 lead.
The Serb then served for the match, sealing victory with Soderling missing a drop shot on match point to bow out after just under two hours.