West Ham United's quadruple signing on Deadline Day was a big morale booster for everyone at the club.
But, if you were to pick out one individual signing as the best, you might not go for the on-loan Chelsea winger in Victor Moses or La Liga winner in Alex Song.
Indeed, Alan Pardew brought Bakary Sako to Crystal Palace this summer after a brilliant season at Wolves - and look how well he has adjusted to life in the top flight.
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As Opta stats show, Antonio and Sako enjoyed similarly productive seasons in the Championship last term.
Both, for Nottingham Forest and Wolves respectively, were two of the best - if not the top two - players in the division and scored and assisted in abundance. The duo also created chances galore, won more dribbles than any other Championship star and completed an array of final-third passes.
And just look at how seamless Sako's transition from second-tier football to the Premier League has been. The 27-year-old was a match winner for Crystal Palace against Aston Villa and then scored at Stamford Bridge of all places.
Antonio is his own player, of course, but there is nothing to suggest the ex-Nottingham Forest star won't replicate that kind of transition for West Ham. And, if so, the Hammers will have signed themselves an absolute gem.