San Antonio Spurs forward Tony Parker has called on his side to up their game as they prepare to take on the Oklahoma City Thunder in game one of the Western Conference playoff finals.

The Spurs face Oklahoma knowing that their opponents' key man Serge Ibaka will be missing, but Parker is under no illusions that the tie will be any easier due to his absence.

"We have to execute a lot better, because against them you can't go half-speed," Parker told reporters ahead of the contest.

"We have to go full speed and we have to be perfect because they're younger than us and more athletic than us, so everything has to be more perfect."

Game one of the sides' final showdown takes place today.