Hamilton made a rare error in the Italian Grand Prix when he accidentally interlocked wheels with Piastri at the second chicane in their fight for position and they made contact.
The incident damaged Piastri’s front wing, forcing him into the pits for a replacement, and earned Hamilton a five-second penalty for causing the collision.
Hamilton came on the team radio to explain that Piastri had been in his blind spot on the approach to the corner, after initially being unclear about how the clash came about.
But having seen what happened after the race, Hamilton quickly made the effort to apologise to Piastri when he realised it had been his mistake.
For Wolff, Hamilton’s maturity in being able to put his hand up at errors was a quality that stood out for him among the crop of current F1 drivers.
“He's very sportsmanlike with these things, and he is the only one that I see out there admitting and saying: 'I got this wrong',” said Wolff after the Italian GP.
“We just had a chat and [he said] he didn't see him on the right and: ‘It goes on me.’ I think that kind of sportsmanship is what you need to admire with him, as pretty much everyone is always complaining and moaning just to try to not gain a penalty.”
Source: Autosport