Warsaw, May 29 -- Chelsea head coach Enzo Maresca has praised his players for showing great team spirit following their 4-1 victory over Real Betis in the UEFA Conference League final on Wednesday.

The Italian emphasized that winning the tournament represented a big step in the team's development.

"It can be a starting point for us. To build a winning mentality you need to win games and competitions. The trophy we won tonight is going to make us better in the future," he said.

Chelsea became the first club to win all four major UEFA competitions - Champions League, Europa League, Conference League, and the now-defunct Cup Winners' Cup - and the FIFA Club World Cup after defeating the Spanish side in Wroclaw, Poland.

Trailing 1-0 unt...