Meet Black Panther, @Marvel's fearsome warrior from #CaptainAmericaCivilWar: https://t.co/i3sPhJ2r3hpic.twitter.com/TbnD1eDaU4
— Entertainment Weekly (@EW) 2 dezembro 2015Source
Article goes a bit more in depth about his character. Apparently he's Team Tony because he's got beef with Bucky.