"His confidence is shattered because every big point he's hitting double faults", Greg Rusedski and Annabel Croft argue whether Grigor Dimitrov needs a psychologist.
"Stefanos Tsitsipas has the look of Bjorn Borg, the competitive nature of Andy Murray and the calmness of Roger Federer," says Greg Rusedski.
"Alexander Zverev is very confident and quite cocky as a character, which you need to the top of the game," believes Annabel Croft.
Just as Roger Federer appeared to have control of the tennis landscape, we witness back-to-back maiden Masters 1000 champions in Juan Martin del Potro and John Isner.
Greg Rusedski and Annabel Croft discuss the re-emergence of the backhand slice and how it is proving fruitful for the world's best players.
"Juan Martin del Potro has put himself in the mix to become a future world No 1," believes Annabel Croft.
Annabel Croft and Barry Millns are undecided over whether Dominic Thiem or David Goffin will win on Friday.
Fast court conditions at The O2 Arena will play into Grigor Dimitrov's hands when he comes up against David Goffin, say Annabel Croft and Greg Rusedski.
Maria Sharapova is ready to challenge for Grand Slams again following her first title since her return, according to Annabel Croft.
Annabel Croft believes firebrand Australian Nick Kyrgios has a long way to go before he can really start challenging the very best players in the world.
Alexander Zverev ripped up the Masters 1000 history books as he produced a "special performance" to dismantle Novak Djokovic in Rome on Sunday.
Annabel Croft and Greg Rusedski both believe Rafael Nadal is the man to beat at the Rome Masters this week.
Annabel Croft and Miles Maclagan were left surprised by Andy Murray's sarcastic looks to his players' box.
Annabel Croft and Miles Maclagan both feel confidence is coming back into Andy Murray's game after the world No 1's recent elbow injury.
Annabel Croft remains positive Andy Murray can return to his best this season despite the Scot's shock third-round loss in Monte Carlo.
We've asked Annabel Croft to offer her expert opinion ahead of a busy clay court season, culminating in the French Open next month.
The Qatar Open final between Andy Murray and Novak Djokovic was so "breathtakingly brilliant", expect more of the same in 2017, says Annabel Croft.
'That was edge of your seat, pulsating tennis and the best match we've seen so far,' was Annabel Croft's verdict on Novak Djokovic's win over Milos Raonic.
We asked our panel to give their predictions. See how our Sunshine Golf pundits think the ATP World Tour Finals will go and cast your vote...
Andy Murray has earned his place at the top of the world rankings after hard work and big decisions, says Annabel Croft.
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