Manchester United's Brazilian defender, Fábio Carvalho, has announced his retirement from professional football after being diagnosed with a serious injury during the Chinese Super League (CSL) match against Guangzhou Evergrande on Sunday.

The 24-year-old, who signed for Manchester United in January 2019, had been playing for Guangzhou Evergrande in the CSL and was due to join the club permanently in the summer. However, he suffered an ankle ligament injury during the match that forced him to leave the field in tears.

Carvalho, who has made more than 50 appearances for Brazil, had struggled with injuries throughout his career and had previously played for clubs such as Benfica, Porto, and AC Milan. He joined Manchester United on loan last season before signing permanently earlier this year.

The news of his retirement comes just days after his team-mate, Anthony Martial, also announced his retirement from international football due to injury. The two players were both key figures in Manchester United's title-winning campaign last season, but their careers have been marred by injuries.

The news of Carvalho's retirement is a blow to Manchester United, who will be without one of their key defenders going into the new season. However, they can look forward to the arrival of new signings such as Jadon Sancho and Bruno Fernandes, who could provide much-needed cover in defence.

In conclusion, the news of Carvalho's retirement from professional football is a sad reminder of the dangers of playing at the highest level. While injuries can happen to anyone, it's important to take them seriously and make sure that all players receive the care and treatment they need to recover fully. As we move into the new season, let us hope that everyone involved in football continues to prioritize safety and well-being.