How did Triple H get injured?

Answer 1

sheamus beated him up at extrem rules, which caused Triple H a severe Limb damage, where Hunter was wearing neck braces, then he tore his bicep.

but he made speacil televised events via...... On February 21, Triple H participated in the Elimination Chamber match for the WWE Championship, although he was unsuccessful. He was attacked by Sheamus a few weeks later, after Sheamus blamed Triple H for costing him the WWE Championship. This set up a match between the two at WrestleMania XXVI, where Triple H came up victorious.[84][85] The night after Wrestlemania, Triple H was attacked by Sheamus while trying to give a farewell speech for Shawn Michaels' retirement. This would set up a rematch at Extreme Rules. At Extreme Rules, after Sheamus attacked Triple H at the start of the show, Sheamus went on to defeat him.[86] On the same night Triple H suffered a torn bicep muscle. WWE announced that Triple H will return on the WWE Fan Appreciation Event on September 22 in Hartford, Connecticut.[87] When he, did He Defeated Alberto Del Rio in a singles match. Later on in the night, during the John Cena and Kane match The Nexus interfered then a few minutes later, the whole locker room (including Hunter) came to attack them.[88] At the 2010 Tribute to the Troops Triple H made a return for a DX Reunion after the show had ended.[89] then on November 21 Triple H then tore his Ligaments in his wrist, therefore WWE Announced that HHH will return whenever the injury heals, doctor said to him in about 10-18 weeks or 1 month.

After the injury he stayed absent so he could film the movie "The Chaperone"