Novak Djokovic and Rafael Nadal will renew their rivalry in the final of the Qatar Open.
The pair are level with 23 wins a piece from their previous meetings, but the world number one Serbian has been victorious in each of their four previous meetings - most recently in straight sets in the semi-finals at the 2015 ATP World Tour Finals.
Djokovic booked his place in the final by defeating third seed Tomas Berdych in straights.
The Serbian looked comfortable in the opening set but was pushed all the way to a tie-break by the resilient Czech next time around.
However, Berdych - runner-up in this event in 2015 - was unable to force a deciding set, Djokovic claiming the first four points of the final game as he surged to a 6-3 7-6 (7-3) victory.
He will face Nadal on Sunday after the Spaniard reached his 99th ATP final by overcoming Illya Marchenko.
The Spaniard claimed the title in 2014 and made light work of the world number 94, who was appearing in just his third tour-level semi-final.
Nadal took just 35 minutes to claim the opening set and, despite losing the opening game of the second set, broke to love midway through to claim a 6-4 6-3 win.