Dimitri Payet was the talk of the town on Sunday afternoon. The West Ham United playmaker once again stole the show with two FA Cup goals against Blackburn Rovers, the first of which was very impressive indeed.
In an attacking sense, no one has been a better signing than the West Ham star this season.
But there has been a summer recruit just as effective at the other end of the pitch - across London.
True, there is N'Golo Kante and a handful of others.
Yet no one has made an impact quite like Payet at West Ham - and no one has single-handedly transformed a whole back four quite like Alderweireld...
Payet's rapport with the Hammers faithful is truly special. The fans love him and he seems to reciprocate that feeling right back.
Slaven Bilic has been keen to rave about the 28-year-old - and why wouldn't he?
Alderweireld, meanwhile, has added to every area of Tottenham's team despite only being a centre-back.
West Ham could still win the FA Cup and Tottenham the Premier League. But, even if both win nothing, they can be proud to have brought in real gems this season.