Sebastien joined West Ham from Eintracht Frankfurt for £45 million in the summer.
The Frenchman has made a fine start to life in east London, racking up four goals in seven Premier League games thus far.
His link-up and hold-up play has been very impressive too. Haller seems to have all of the attributes needed to be a real success in the Premier League.
And the 6ft 3in target man has already received recognition from one of England’s biggest media outlets.
talkSPORT have named the 25-year-old as the Premier League’s best summer signing, ahead of names such as Manchester City’s £63m Rodri (the Sun), Leicester City’s Youri Tielemans and Manchester United’s Daniel James.
Whilst Haller will undoubtedly be aiming for bigger accolades during his time at the London Stadium, being named as the best summer signing by talkSPORT will undoubtedly give him a confidence boost.
West Ham are aiming for the top six this season. And if Haller can score 15-20 plus goals, they have every chance of doing just that.
The Frenchman has made a fine start to his Hammers career. And the exciting thing for West Ham fans is that he will surely continue to get better.