5 of the best signings so far this season

#3 David Alaba (Real Madrid)

FC Barcelona v Real Madrid CF - La Liga Santander

Real Madrid signed David Alaba on a free transfer this summer. It was one of the most high-profile acquisitions of the transfer window. Real Madrid desperately needed to strengthen their backline as their world-class centre-back duo of Sergio Ramos and Raphael Varane were fixing to leave.

Alaba's arrival has helped Real Madrid massively with the transition. The versatile Austrian international plays at centre-back as well as left-back for Los Blancos. He has scored a goal and provided three assists in 11 La Liga appearances so far this term.

Real Madrid certainly have a world-class defender in their ranks now and his hefty wages can be offset against the lack of a transfer fee as well. Alaba has proved to be one of the best signings of the summer so far.

#2 Achraf Hakimi (Paris Saint-Germain)

Paris Saint Germain v RC Strasbourg - Ligue 1 Uber Eats

Achraf Hakimi was PSG's most expensive acquisition of the summer transfer window. The all-action right-back was signed from Inter Milan for a sum of £54 million. The Parisians needed to strengthen at right-back and Hakimi was already one of the best in the business and he was just 22-years-old at the time.

Hakimi hit the ground running at his new club. He has since slowed down a little but PSG's all-round form has been nothing to write home about either. Hakimi has scored three goals and provided two assists in 12 Ligue 1 appearances so far this term.

He is a livewire in attack and is critical to PSG breaking on the counter. The 23-year-old still has a long way to go but he looks capable of becoming one of the best right-backs of the modern era.

#1 Cristiano Ronaldo (Manchester United)

Atalanta v Manchester United: Group F - UEFA Champions League

With Cristiano Ronaldo, the question that Manchester United face is whether or not the sacrifice has been worth the addition. For now, it definitely has been. Indeed, Ronaldo's arrival in the summer has forced Solskjaer to rejig his setup.

Bruno Fernandes has become more of a playmaker than a goalscorer and credit goes to him for excelling at it. But a few vital cogs in this Manchester United side are not playing anywhere close to the level they're capable of.

The likes of Harry Maguire, Luke Shaw, Fred, Jadon Sancho and Paul Pogba have all been awful in recent months. Without Cristiano Ronaldo's goals, most of which have come at extremely crucial points, Manchester United's position would be a whole lot worse.

Their Champions League campaign would have already ended if not for Ronaldo's rescue act in games against Villarreal and Atalanta. The Portuguese international has scored nine goals and provided an assist in 13 appearances across all competitions so far this season.