Barca go in search of a fourth straight win at Eibar on Sunday night, Enrique is hopeful the Spanish champions are finally beginning to find the form that will help them chase down Real Madrid at the top of La Liga.
Milos Raonic's machine-like advance through the Australian Open suffered a brief glitch against Gilles Simon but the Canadian re-booted to delete the dogged Frenchman 6-2 7-6(5) 3-6 6-3 and reach the fourth round on Saturday.
Hales has been ruled out of the third and final one-day international against India on Sunday after he fractured his right hand while attempting a catch in the second ODI in Cuttack.
If Arsenal are to win the title for the first time since 2004, they will need focused performances from Alexis Sanchez and Mesut Ozil, but Wenger has so far offered no updates on the apparent impasse over the duo's proposed new contracts.
The 14-time Grand Slam champion, 11 years older than Zverev, dug deep into his physical reserves to triumph 4-6, 6-3, 6-7 (5/7), 6-3, 6-2 in four hours and six minutes on Rod Laver Arena.
The left-handed pacer removed the debutante Peter Handscomb in 11th over of the match on a duck, but the replay showed that it was a no-ball. Australia would have been 46/3 while chasing 264 runs, if it had not been a no-ball.
Agassi, describing Djokovic as "one of the greats", said he could soon be back to his best, comparing the Serb's nosedive to his own troubles in the 1990s.
The Slovak sixth seed and WTA Finals champion joins third seed Agnieszka Radwanska and fourth-seeded Simona Halep as first-week casualties, blowing the draw wide open.
New Zealand, comfortable at 252-4, were rapidly reduced to 260-7 by Shakib in reply to Bangladesh's 289 when rain ended play about 40 minutes early at Hagley Oval.
It is the 14th time in her 17 Australian Opens she has made at least the fourth round, and sets her up with a clash against 16th-seeded Czech Barbora Strycova, who beat French 21st seed Caroline Garcia.