Alvaro Morata regrets trying to play through the pain barrier with a back injury which ultimately kept him out for nearly a month before returning against West Brom on Monday.
The Spain international made a strong start to life in England, scoring eight times in his first 11 Premier League appearances following a €65million move from Real Madrid.
But he has struggled since, scoring just two in his last 10 league games and attracting criticism for several wasteful performances in front of goal.
It became apparent that he had been suffering from a persistent back problem in January and, after the FA Cup replay penalty shoot-out win over Norwich in which he was red-carded, it was finally decided that Morata needed time off once his suspension was served.
He made his return after nearly a month out in Chelsea's 3-0 defeat of West Brom, appearing as a second-half substitute, and he acknowledges making a mistake in trying to cope with the injury after Antonio Conte had put so much faith in him.
Speaking to Movistar, Morata said: "He [Conte] is the one who bets on me and that's the truth.
"At the end of the day, a great club has given me the opportunity to play as a starter and to grow.
"That is until the physical problems arrived. I was wrong to play with pain. I wasn't okay to play."
Chelsea and Conte have given Morata the opportunity to play first-team football as a regular starter, something he was never afforded at Madrid or Juventus.
His second spell in Madrid last season saw him feature more often, but even though he scored 15 LaLiga goals from just 14 starts, Morata grew frustrated by not being trusted to play in the bigger fixtures.
"I played lots in my home, with my team, with my friends," Morata said. "We won the league and Champions League.
"I played lots of games, but always with the 'plan B'. I never asked to be a starter, Madrid is another planet.
"But I didn't play knockout games in the Champions League, neither against Barcelona, Atletico Madrd, Sevilla or Valencia. Life doesn't end when you leave Real Madrid, but I am still a fan of Real Madrid."
|Low slams decisive France penalty call|
|I fined him for his goal at Old Trafford! Giggs delighted for Wales hero Wilson|
|Matuidi lauds Deschamps´ tactical nous after Germany win|
|Scaloni excited by Argentina despite Brazil loss|
|Tsonga back in business, Dzumhur dumped out in Moscow|
|Germany suffer six defeats in a year for first time|
|Many clubs have asked about Piatek - agent|
|Bartomeu: Barca open to defensive reinforcements after Vermaelen injury|
|Bonn spoil PAOK´s landmark European game|
|Konta conquers Mertens in Moscow|
|Republic of Ireland 0 Wales 1: Wilson stunner moves Giggs´ side top|
|France 2 Germany 1: Griezmann delivers Low blow as Les Bleus reign in Paris|
|Belgium 1 Netherlands 1: Groeneveld cancels out Mertens strike|
|Argentina 0 Brazil 1: Miranda heads late winner after rivalry fails to ignite|
|Messi would struggle in this Manchester United team – Scholes|
|Falcons place Devonta Freeman on injured reserve|
|Westbrook ruled out of Thunder opener|
|Wilder´s team open to Joshua talks|
|Brentford appoint Thomas Frank as new head coach|
|England´s perfect performance sets the standard - Trippier|
|Odell Beckham Jr. needs to create headlines on the field, says Giants owner|
|Robshaw joins list of England absentees|
|Chile need goals from Sanchez despite United form - Rueda|
|Modric reveals Ronaldo respect, ´will never play with´ Messi|
|Osaka can be one of the greats, says coach Sascha Bajin|
|Liverpool´s Naby Keita carried off injured in Guinea match|
|Duminy to miss Australia tour for shoulder surgery|
|F1 Raceweek: Ferrari ready to ´challenge the impossible´ as Hamilton nears title|
|Umesh replaces injured Thakur in ODI squad|
|IAAF delay implementation of testosterone ruling amid Semenya challenge|
|Fakhar and Sarfraz lead Pakistan recovery after Lyon blitz|
|Japan see off Uruguay in seven-goal thriller|
|Arda Turan given huge fine by Istanbul Basaksehir after alleged brawl with singer|
|Busquets no better or worse than Dier – does Opta data back up Allardyce claim?|
|United boss Mourinho charged for alleged post-match comments by FA|
|Halep withdraws from Kremlin Cup ahead of WTA Finals|
|Renato Sanches eager for further Bayern Munich minutes|
|Nations League standings: Promotion, relegation and race for finals|
|Windies coach Law banned for ´inappropriate comments´ in India Test|
|Carrick denies Manchester United stars are ´not trying´|
|Ferrari struggling under pressure of chasing Mercedes, says Massa|
|Australia desperately need Smith and Warner back - Warne|
|Draxler warns Germany: Mbappe has 300 hp!|
|Draymond Green says Warriors will have to ´bring it´ every night in the West|
|England´s ´wonderful bravery´ leaves Southgate excited for the future|
|Jayasuriya: I always conduct myself with integrity and transparency|
|Northern Ireland stars hurt by lack of club football, says O´Neill|
|Rodgers inspires late Packers comeback|
|Brewers blank Dodgers to take 2-1 NLCS lead|
|Cavaliers, Nance agree to four-year extension|
|Ramos wants Spain to believe in Luis Enrique´s team|
|De Laurentiis: I´ve spoken to Genoa and agent about Piatek|
|Kaka tips bright future for Paqueta after Milan agreement|
|Suns star Booker set to return for season opener|
|Warriors coach Kerr not expecting fast start from NBA champs|
|Fultz to start for 76ers as Brown eyes NBA Finals|
|Maltese champions Valletta want Usain Bolt|
|It would have been normal to kill them! Luis Enrique slams abysmal Spain|
|Seahawks, Trail Blazers owner Paul Allen dies aged 65|
|Red Sox ace Sale released from hospital, still set for game five|
|Beer-throwing fan banned by Patriots|
|Southgate lauds ´tremendous´ attackers after famous Spain win|
|Djokovic closing in on summit as he scales new heights|
|Monaco the natural move for Henry - Martinez|
|Ending England drought a ´beautiful feeling´ – Sterling|
|Halep to face Pavlyuchenkova in Moscow comeback|
|NBA 2018-19: Five non-LeBron James storylines to follow|
|Spain 2 England 3: Kane inspires Three Lions as Sterling ends drought in style|
|Bosnia-Herzegovina 2 Northern Ireland 0: Dzeko double leaves O´Neill´s side on the brink|
|Mannarino stops the rot in Moscow|