Rennae Stubbs is worried about Novak Djokovic as she claims he’s now doing something he ‘never’ would when at his best

Djokovic lost to Matteo Arnaldi in straight sets at the Madrid Open, and he has now his opening match at four of his last five tournaments.

The Serbian is still searching for his first victory of the clay court season this year, with many questions being asked about Djokovic’s future.

This speculation was only heightened when Djokovic made a confession about the Madrid Open after his worst performance at the ATP Masters 1000 tournament in seven years.

Rennae Stubbs is worried after Novak Djokovic’s loss at the Madrid Open

Djokovic’s latest defeat has caused a big reaction, including from Serena Williams’ former coach Rennae Stubbs.

In a social media post, the former doubles world number one admitted she was concerned for Djokovic and suggested that he was losing his aura amongst the locker room.

“The worry index continues for Novak, as i pointed out on my latest podcast,” Stubbs said on X (formerly known as Twitter). “He’s making way too many unforced errors (32 today) and NOT locking down in the biggest moments. Guys are not intimidated anymore because of that & that’s the biggest key for these player, they see/feel it.

“When you lose your aura, and in turn are NOT locking down & making these guys suffer, like double faulting 2 x in a row to drop serve in the 1st set. You would never see that from Nole at his best. How do you get that confidence back? You have to win and i worry the motivation is gone.

“At some point in an athlete’s professional life, you hit a wall, age, stress, travel, family life, packing bags, flights, customs, hours on court, in the gym, it gets harder & harder. Your motivation starts to wain and you stop wanting to push through those tough barriers to get the results.”