Victor Wanyama has found the form that made him such a wanted man prior to his move to Southampton from Celtic in 2013.
The Kenyan, who was coveted by a host of top European clubs before choosing to join Southampton under Mauricio Pochettino, is truly showing why the Argentine paid £12 million for his services just over a year ago.
The form has even seen the midfielder on the scoresheet three times this season, but it is not just for his goalscoring that the midfielder is earning much praise.
Breaking up the play
The 6ft 2in midfielder has forged a spot in the Southampton team under Koeman, and has become a vital part of a defence that has conceded just five league goals this season.
His sheer presence is enough to create a mental barrier to an opposing midfielder, and his ability to break up the play is exceptional.
The timing of the challenge and the power to dispossess an opponent has made Wanyama into one of the finest in his position the Premier League has to offer. The 23-year-old especially comes into his own when faced with the toughest of opposition, and he makes it look so easy.
Although the midfielder has mastered the art of breaking up play, his all-round game has also improved. His passing range has improved greatly since he joined the Saints, and playing alongside players like Morgan Schneiderlin can only help his cause further.
Koeman also called upon his star from the bench in the home match against Stoke City. His introduction more-or-less killed the game for the home side thanks to his shackling of Peter Crouch in the air, another strong skill that he can call upon when needed.
The African powerhouse has added the above to his already impressive arsenal this season, and when you consider some of the top defensive midfielders in the Premier League, Wanyama's name would be up there with the best of them.