Stoke City have stepped their summer transfer window business up a notch in recent days, with the club confirming the signings of no fewer than six players since Wednesday.

One of those to have signed is Lee Gregory, with the striker moving to the bet365 Stadium on a free transfer following the expiry of his contract with Millwall.

Given the context of his arrival, Gregory may be one of the more unheralded of Stoke's signings this week, but he could still play a key part for The Potters next season.

Here, Football League World puts the spotlight on Gregory's performances for Millwall last season, to see just how important he could be for Stoke next season.

The first thing to note is that despite Millwall's struggles last season, Gregory's record for The Lions is rather impressive in comparison to that of Stoke's own side last season.

Gregory's return of ten goals from his 44 Championship appearances is better than that of any of The Potters squad last season, while only Tom Ince was able to match the striker's return of seven assists.

You feel that Gregory is also a player who will look to make things happen for Stoke next season. Of the Potters' squad last season, only Tom Ince and Sam Vokes averaged more shots per game than Greogry's 1.8, with the pair looking to trouble the opposition goalkeeper at an average 2.7 and 1.9 times per game respectively.

The newly recruited striker also lands himself in the top five of Stoke's squad from the previous campaign when it comes to the average number of fouls won per game, which also indicates that he will help the Potters increase their threat from set pieces next season.

That is something Gregory could well do in terms of both winning and converting them, with only striker Sam Vokes and central defensive pairing Danny Batth and Ryan Shawcross winning more aerial duels per game among those currently still at the club.

It may not have been the most eye catching of transfers when announced, but if Gregory can build on his performances in a struggling Millwall side last season in a Stoke team hoping to challenge for promotion back to the Premier League, then you imagine that it won't be a signing that is forgotten too soon.