Substitutes can make a significant impact on the outcome of a game, especially in high-pressure situations. In the case of Monaco, their substitute, Moussa Dembélé, has had a huge impact on the team's success.

Dembélé joined Monaco in January 2017 from Barcelona, where he was instrumental in winning several titles including the La Liga title. He scored 45 goals in 99 games for Barça, making him one of the most prolific strikers in Spanish football history.

In his first season at Monaco, Dembélé struggled to find his form and struggled with injuries. However, when he returned to action in the second half of the 2018-19 season, he made an immediate impact. He scored three goals in four matches, helping Monaco finish as runners-up in the league.

Last season, Dembélé continued to impress, scoring 16 goals in 32 appearances for Monaco. His performances earned him a call-up to the France national team, where he made his debut against Ukraine in November 2019.

This year, Dembélé has been even more impressive. He has already scored eight goals in six games this season, including a stunning hat-trick against Rennes in October. His performances have not only helped Monaco maintain their top spot in the league but also attracted interest from other clubs.

The impact of Dembélé on Monaco is clear. He provides pace, skill, and creativity that complements the team's attacking style. His presence has given Monaco a new lease of life, and his performances have lifted the team's morale and confidence.

Overall, Dembélé's impact on Monaco cannot be overstated. His talent, work rate, and leadership have helped the team achieve great things. It will be interesting to see how he continues to perform and what impact he has on the rest of the league this season.