The Frenchman made his competitive debut in the 5-0 defeat to Manchester City on Saturday, but the Italian is expecting big things in the coming weeks.
Speaking to talkSPORT, he said: “This player, with his size, he is two metres tall, he is very tall. I saw him many times score and assist with his left foot, right foot.
“He has a great first touch, which is crucial in modern football. He is physical, strong. He is exactly what West Ham have needed because Carroll was always injured and Arnautovic was an ex-wide attacking player.
“Haller can do very well. With the players he’s got around him – Anderson, Lanzini – he can become a very good striker for West Ham.”
Few people are as qualified to talk about what it takes to lead the line in claret and blue as Di Canio, and if he says that Haller has what it takes to make it in east London, then chances are he has what it takes to make it in east London. Yesterday’s match against Manchester City was a baptism of fire of for the player, with chances at a premium, and meaningful possession in short supply. But despite that, Haller gave a pretty good account of himself. A pass completion rate of 91.2%, plus two aerial duels won, and getting dispossessed just once, as per Whoscored, illustrate a player who can hold up play well, and link with those around him when required. He only managed the one shot, and that was a relatively feeble effort, but he will get more chances in easier matches, and you wouldn’t bet against him burying them.