Sorry, still wrong. I not in argue state, just that i totally disagree. Im not arrogant, just that the fact is wrong. First of all, the word main is very strong word as in the sole reason or the one and only reason why we win and to nominate costa as main in both season is...not true. Like i said, one of the reason i can agree but MAIN reason is totally cant.

Why? 2014/2015 season, who the one feed the ball to costa? Fabregas. Without fab, costa will be hard to score goal. Without costa, we have hazard to do the job. Who is matic in the team? The anchor who did brilliant to defend the mid field. Without him, we gonna having a hard time to defend and also attack. So these 2 pair are the golden pair which lead us winning the title. And last but not least, costa who brilliantly convert the pass into goal. But football is just not scoring goal, it also about defense.

2016/2017 season, planty of name that lead to us winning. The small tank kante who save us from getting rape in the middle, the brilliant hazard who dance on the field, the speedy pedro, the angel wing of alsonso and moses and not to forget luiz who control the back 3. Costa in the list? I would say yes and no. 50-50 since planty of chances created but few converted. Not to mention he keep on asking to move to china etc. Performance wise? I give 6.5/10.

Again, i not here to argue. U can voice out ur opinion, so do i. If i agree then im ok with it. If i disagree i also ok but things nees to be clear out hence i typing this tl:dr . Lastly, the word main is like we depend on him alone and he is the one carry the team on his back. if conte and mou only field costa alone in the field and we won the trophy, then i will agree that he the main reason

he strongly believes costa didn't help chelsea to 2 titles

don't challenge him yo