In men's Round of 16 action on Sunday at the Australian Open, Djokovic beat Fabio Fognini 6-3, 6-0, 6-2, Ferrer downed Florian Mayer 6-7 (5), 7-5, 6-2, 6-1, Berdych downed Kevin Anderson 6-2, 6-2, 6-3 and finally Wawrinka beat Tommy Robredo 6-3, 7-6 (3), 7-6 (5).
Four-time Australian Open winner and world No. 2 Djokovic cruised into the quarter finals in Melbourne for a seventh straight year when he had little trouble against Italian 15th-seed Fognini in straight-sets.
Fognini was already in foreign territory having won into the fourth round at the Australian Open for the first time, but he was no match for the Serbian star as Djokovic was in no mood to muck around on Rod Laver Arena.
Djokovic hit seven aces, 33 winners, won 12-of-16 points at the net and lost only five points on his first serve all day as he hammered the hapless Italian.
Fognini wasn’t even able to open up a single break point against Djokovic while the Serb had 22 break point opportunities throughout the match and converted six of those.
The only men's fourth round match on Hisense Arena pitted world No. 3 Ferrer up against the 37th-ranked Mayer, and it was the unseeded German who got the jump over his more-fancied Spanish opponent.
Mayer was playing in his fourth round match ever at the Australian Open and took a one-set to love lead when he won the opening set in a tie-break, but Ferrer worked his way on top from there.
The second set was another tight battle with Ferrer winning it 7-5, but he then dropped just three more games the rest of the match as he won his way through to the quarter finals in Melbourne for a fifth time, and fourth straight.
Ferrer won to book in a quarter-final match up with seventh-seeded Czech Berdych who eliminated South African Anderson for a third straight year at the Australian Open.
Berdych's confidence deserved to be high coming into the match-up having won at the same event over the same opponent the last two years, but the two big-servers have still played tight contests with breaks of serve hard to find.
However, that wasn’t the case this time around with Berdych breaking the serve of Anderson on six occasions to cruise to the straight-sets win dropping just the seven games along the way.
The Sunday men's fourth round action then came to a close on Rod Laver Arena with two of the best pure shot makers in the world, Wawrinka and Robredo doing battle in a match that had all the makings of being a classic.
It was the Swiss world No. 8 who got off the fast start, though, racing through the first set six games to three.
However, Robredo's career resurgence over the past 12 months has seen him win big matches coming from behind including three successive five-set wins at Roland Garros after falling two sets to love down against Igor Sijsling, Gael Monfils and Nicolas Almagro.
So Robredo knew he wasn’t out of the contest and Wawrinka knew that too and the next two sets saw the quality of tennis from both players live up to expectations.
Both the second and third sets went to a tie-break, but the potential marathon match-up when Warwinka won the second set tie-break seven points to three, and then the third seven points to five to take out the Round of 16 match-up in straight-sets.
While Robredo certainly didn’t play badly, it was an outstanding performance from Wawrinka who hit 14 aces, won 90 per cent of his first serves, won 17-of-25 points at net and hit a supremely impressive 57 winners to just 37 unforced errors.
The win for Wawrinka sets up a clash with world No. 2 Djokovic whom he lost to in five sets last year in Melbourne and also in a five-set classic in the semi finals of the US Open.