Sergiy Stakhovsky will join the Ukrainian reserve army to fight for his country. Stakhovsky was once ranked as hig as world number 31 and defeated Roger Federer at Wimbledon in 2013. He retired from tennis after the Australian Open early this year.

Stakhovsky will leave his wife and children in Hungary while he joins the army. Speaking of decision to join the reserve army, Stakhovsky said:

I know how to use the gun, I pretty much hope that I will not have to use the gun, but if I have to, I’ll have to.

While several tennis players have posted ant-war messages on social media, Stakhovsky is the first well-known tennis player to join the army to fight the Russian invasion.

Stakhovsky said that he received messages of support from Novak Djokovic but Roger Federer and Rafael Nadal haven’t responded to his messages.

Alexander Zverev will play Davis Cup for Germany this weekend, one week after getting kicked out of the tournament in Acapulco for hitting the umpire’s chair during a doubles match. ATP is investigating the incident and in the meantime, Zverev is free to play on the tour.

Recently, Zverev had said that he is not a fan of the new Davis Cup format. His brother had said in interviews that Zverev will skip Davis Cup matches due to scheduling conflicts. But after Zverev was kicked out of Acapulco, he has changed his mind and shown interest in Davis Cup. Some tennis observers have suggested that it’s a PR move to improve his image

Zverev is also under investigation by the ATP for domestic abuse. His former girlfriend Olga Sharypova has alleged that Zverev subjected her to physical and emotional abuse throughout their relationship.

Alexander Zverev has faced no consequences for his bad behavior. Sponsors have stuck with him despite the allegation. He has not missed any tournaments because the ATP has taken no action on his case.