Kelvin De Bruyne's inability to perform well since the start of the season is caused by the injury he picked in the beginning of the season and not because he can't do well if he was actually fit enough for games. In his first game in over four months, Kelvin De Bruyne still delivered a man of the match performance after he came in from the bench against Newcastle in their English Premier League game last weekend and I'm very optimistic that he's even gonna do more in coming weeks.
Pep Guardiola is one manager that surely knows how to rotate his squad and that's why he was able to still remain in the fight for who wins the English Premier League title this season even when his two best players of last season Kelvin De Bruyne and Erling Haaland were out injured. In the coming weeks, Erling Haaland will return to full action and I think he's surely gonna be a great help and addition to the squad.
The performance of Kelvin De Bruyne have become professional in decades, probably after Pep Guardiola took over the managerial affairs of Manchester City. There's alot I learnt about the club, they become consistent after Pep Guardiola worked on the team and bringing in his choice of players and not some random average players that would triggered Manchester City to decline in performance. Kelvin De Bruyne was ruled out for lengthy games due to the critical injuries he obtained in the early starts of the season and that have left the Belgium international behind though he has finally returned and have become one of the key project for Pep Guardiola in Manchester City.