Nadal prepared for his third round match against David Ferrer at the Barcelona Open this morning on one of the outside courts.
But footage from Spanish broadcaster RTVE captured Nadal stopping play and shaking his wrist in clear discomfort.
Nadal was able to continue playing after a massage from his physio.
Just before he took to the court for his match against Ferrer, the 32-year-old was asked whether his wrist was OK.
And he replied: “Yes.”
Nadal’s comments will be a relief to him and his fans after a difficult six months with injury.
Since last November he’s had abdominal, ankle, thigh, knee and hand injuries to deal with.
Speaking at last week’s Monte Carlo Masters, Nadal was open about the struggles he’s had.
He said: “Problem sometimes is we are used to be very, very solid all the time, and even coming back from injuries, winning and winning and winning, and things are not easy, no?
“And after one year and a half, without having the chance to play tournaments in a row and a lot of stuff happened, is more difficult to hold sometimes the level every single day when you don’t have confidence in tournaments in a row, no, or matches in a row.
“And that’s what I needed probably to know that the half level, I have it.
“Even if I have been very competitive all the tournaments that I have been playing, all these stops create some instability in terms of you know that you have this 60 or 70 per cent of your level, 100 per cent.
“Then some days you have that 90 or 100, but this 70, you have it always.
“That’s why I have been able to win all the things that I won, especially on clay.
“And today seems like I had during the previous days, but is always more difficult when all these things are going on.”