Manchester City striker Sergio Aguero has revealed that Pep Guardiola was 'angry with him last season but the manager has insisted it was 'worth it' following the Argentine's stellar campaign.The 29-year-old has admitted to struggling with Guardiola's demands when he arrived in 2016 and Gabriel Jesus' arrival just six months later saw his opportunities to play dwindle.In a trophyless season for City last year, which saw them finish third in the Premier League, Aguero looked destined for the Etihad exit with a rumoured return to Atletico Madrid on the cards. Aguero believes his fortunes turned around once his striker partner went down with an injury and his hard work and dedication in training saw him get the nod again to lead the line for City.Guardiola's men went on to break many Premier League records after running away with the league while Aguero himself became the club's all-time leading goalscorer back in November.Despite not seeing eye to eye in the beginning, Aguero insists he and Guardiola are now on the same page and reveals that Guardiola's initial anger made him a better player. 'Pep is a very demanding coach and adapting to what he wanted was not easy during the first year,' Aguero told Argentine TV channel TYC Sports.'Besides my responsibilities as a striker, he wanted to get me involved as the first defender of the team. When Gabriel Jesus arrived, he had more options and I started to play less.'I kept giving my best in practice and working hard so, when Gabriel went down with an injury, I was able to come back stronger and scored a lot of goals.'I think this year we were on the same page with Pep. He told me he was happy with my performance and his anger was worth it because I had a better year.'