Liverpool F.C. soccer player Diogo Jota was killed in a car crash in Spain along with his brother, police say.

Former Liverpool manager Jürgen Klopp wrote a moving tribute to Diogo Jota and his brother Andre Silva, who died in a car crash early Thursday morning. Klopp, who coached Jota for four seasons at Liverpool, said Thursday he was “heartbroken” by the news.

As a child Diogo Jota idolized Cristiano Ronaldo. In a career that took him to soccer stardom, he would go on to call the Portugal great a teammate and win some of the sport’s biggest trophies.