With the completion of his €50 million transfer from Bayern Munich to Barcelona, Robert Lewandowski has joined the club of the most expensive players over the age of 30.

By the time the season begins, Lewandowski will be 34, but Barcelona supporters won't need to exhale hard since they can rest easy knowing that he still scored 50 goals in just 46 appearances across all competitions last year.

The highest trasfer fees of all time for over-30 footballers

10) Jasper Cillesen

From: Barcelona

To: Valencia

Transfer fee: €35m

This list's unexpected addition of former No. 1 Netherlands In the summer of 2019, Jesper Cillesen transferred to Valencia for €35 million after three years at Camp Nou where he was unable to beat Marc-Andre ter Stegen.

Since he was a goalkeeper, Cillesen had a longer career ahead of him than the ordinary outfield player.

9) Leonardo Bonucci

From: AC Milan

To: Juventus

Transfer fee: €35m

Leonardo Bonucci, Andrea Barzagli, and Giorgio Chiellini, collectively known as the "BBC" back three, were the driving force behind Juventus' dominance, but the trio was disbanded in 2017 when Bonucci chose to move to Milan.

After 35 inconsistent games and a sixth-place Serie A finish, Bonucci returned to Juventus. Later, Bonucci reminisced on his time at San Siro, saying, "It wasn't wasted." It helped me become a better man and let me realize that Juventus was where I belonged.

9) Gabriel Batistuta

From: Fiorentina

To: Roma

Transfer fee: €36.2m

We have to travel all the way back to 2001 to get Gabriel Batistuta, the oldest player in this group, who represents the eighth most costly transfer of a player aged 30 or more.

Batistuta was an intimidating striker who started for Argentina in three World Cups. He was also fiercely loyal, spending nine years with Fiorentina, which included a season in Serie B in 1993–94. In Florence, there is a life-size bronze monument of "Batigol," who moved to Roma in 2000 and led them to the Serie A championship.

8) Mats Hummels

From: Bayern Munich

To: Borussia Dortmund

Transfer fee: €37m

7) Radja Nainggolan

From: Roma

To: Inter Milan

Transfer fee: €38m

6) Paulinho

From: Guangzhou Evergrande

To: Barcelona

Transfer fee: €40m

5) Kalidou Koulibaly

From: Napoli

To: Chelsea

Transfer fee: €40m

4) Leonardo Bonucci

From: Juventus

To: AC Milan

Transfer fee: €42m

3) Robert Lewandowski

From: Bayern

To: Barcelona

Transfer fee: €50m

2) Miralem Pjanic

From: Juventus

To: Barcelona

Transfer fee: €65m

1) Cristiano Ronaldo

From: Real Madrid

To: Juventus

Transfer fee: €112m