Who will leave more than a ball mark on red clay this week? Action continues at several European tournaments, which includes renowned gems in Stuttgart and Barcelona.

Here are Monday's Top 5 photos. (All by Getty Images)

1

Maria Sakkari

Playing for the first time since reaching the Miami Open semifinals, Sakkari posted a 6-2, 6-2 victory over wild card Andrea Petkovic, and now awaits the winner of Petra Kvitova and Jennifer Brady.

Top 5 Photos 4/19: 
Sakkari dismisses 
Petko in Stuttgart

Top 5 Photos 4/19: Sakkari dismisses Petko in Stuttgart

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2

Kei Nishikori

Two-time Barcelona champion Nishikori denied Guido Pella, 4-6, 7-6 (4), 6-2, after the Argentine served for the match at 6-5 in the second set.

Top 5 Photos 4/19: 
Sakkari dismisses 
Petko in Stuttgart

Top 5 Photos 4/19: Sakkari dismisses Petko in Stuttgart

3

Alternative Fans

After being forced to cancel in 2020 due to COVID-19, Stuttgart organizers ensured its 2021 event would go on, albeit behind closed doors.

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Top 5 Photos 4/19: 
Sakkari dismisses 
Petko in Stuttgart

Top 5 Photos 4/19: Sakkari dismisses Petko in Stuttgart

4

Rafa's House

A look at the main stadium court in Barcelona, otherwise known as Pista Rafa Nadal—who seeks a record-extending 12th event trophy this week.

Top 5 Photos 4/19: 
Sakkari dismisses 
Petko in Stuttgart

Top 5 Photos 4/19: Sakkari dismisses Petko in Stuttgart

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5

Belinda Bencic

While the Swiss crashed into the net, she didn't fall at her first Stuttgart hurdle in easing past 17-year-old Nastasja Schunk, 6-4, 6-2.

Top 5 Photos 4/19: 
Sakkari dismisses 
Petko in Stuttgart

Top 5 Photos 4/19: Sakkari dismisses Petko in Stuttgart