The West Brom skipper will sadly be out for six months.
And Kilbane sent the 31-year-old a kind message on Twitter after the news broke:
Brunt suffered more than most when West Brom lost 3-1 at Reading in the FA Cup, with a fan throwing a coin at him as he approached the away end at full-time.
All credit to Tony Pulis and his side for their reaction to that loss. Since then, the Baggies have beaten Crystal Palace 3-2 and earned a very creditable 2-2 draw at Premier League leaders Leicester City.
For Brunt, however, injury misery has not only ended his club season but ruined his chances of going to Euro 2016. A blow like that is very difficult to comprehend for anyone and West Brom fans will have a huge role to play in lifting the skipper when he returns to action next campaign.
En masse, the response to the coin-throwing incident was very positive from the Baggies faithful. Now Brunt faces another big challenge in his career.