Dzumhur explodes after an error by the electronic line-calling against Arnaldi: "I'm not playing anymore"

Streaming M25 Hillcrest live tennis

🎾 Andreas Timini vs Giulio Perego

1. Sign up with Bet365 here
2. Make your first deposit of at least €5
3. Go to the “Live” section and watch every match

Watch the match on Bet365

 PUBLICIDAD

Register at bet365, deposit €5 or more into your account and you will receive 100% of your eligible deposit in Bet Credits (up to €100). New customers only. Terms apply. Winnings do not include the value of Bet Credits. Maximum prizes, game restrictions, time limits and terms apply. Registration required.

The quarterfinal match at the ATP 250 in Umag between Matteo Arnaldi and Damir Dzumhur has not only been one of the great matches of the year, but it has also been marked by one of the biggest controversies of 2026 so far. After an electronic line call error, the Bosnian player stated he didn't want to continue playing, but eventually prevailed with a score of 7-6(5) 6-7(4) 7-6(4) after 3 hours and 42 minutes.

This was Matteo Arnaldi's ace, which was called 2mm in by Hawkeye, against Damir Dzumhur in Umag. pic.twitter.com/XKFyUtwk6H

— SmoothManSports (@SmoothManSports) July 16, 2026

The match had it all, including Dzumhur's backhand shot, which will undoubtedly stand as one of the great points of the year. However, controversy arose when in the first set tiebreak, Arnaldi hit an ace that the electronic line call deemed good, despite the bounce being clearly far from the line. Damir got furious and was clear in his protest: "I'm not playing anymore." Nevertheless, things calmed down, and he even won the first set and eventually the match.

The ongoing controversy with electronic line calls

This is not the first time something similar has happened, as in the 2025 Madrid Masters 1000, there was a famous moment between Alejandro Davidovich and Alexander Zverev where a ball from the Spanish player was called in but the bounce seemed clearly out. In fact, the German player even went as far as getting his phone to take a picture of the bounce because he couldn't believe it.

Previously, there was no Hawk-Eye on clay courts, and it was the chair umpire who would come down and determine if the bounce was good or not. However, technological advancements have led to only Roland Garros continuing to rely on the traditional method. In theory, the electronic line call system should be more reliable, but it still gives rise to controversies as prominent as this one. 

This news is an automatic translation. You can read the original news, Dzumhur estalla tras un error del canto electrónico ante Arnaldi: "No juego más"