Arsenal beat Hull City 2-0 in the Premier League on Saturday, thanks to two goals from Alexis Sanchez. But the main talking point of the game was Sanchez's first goal - which was a fairly blatant handball. The ball clearly came off Sanchez's hand and went into the net in the 35th minute of the game. It was a lead Arsenal would hold on to until the 93rd minute (when the Chilean would score from the penalty spot after Hull's Clucas was sent off, ironically for hand ball).
Referees often make mistakes - after all, they're only human. But it is extremely rare to hear of a referee apologising, let alone in the middle of the game.
Hull boss Marco Silva wasn't best pleased in the aftermath of the game, clearly (and rightly) feeling his side were robbed. And he revealed that at the start of the second half referee Mark Clattenburg actually apologised to his players for missing the handball.
(He reveals Clattenburg's apology about 30 seconds in)
Marco Silva reveals Mark Clattenburg apology
https://www.youtube.com/watch?v=hok321mqN_c
Admirable humility from the man named the world's Referee of the Year late in 2016.