Football clubs are "not ready" to effectively harness the work of sports psychologists, according to Chelsea head coach Maurizio Sarri.
The Blues went down to a surprise 1-0 home defeat against Leicester City at the weekend, where their disjointed response to Jamie Vardy's 55th-minute goal was at odds with an earlier control of the contest.
Sarri suggested his players' mentality was the issue, rejecting suggestions that they are not physically prepared to implement his style of football.
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However, the 59-year-old Italian's previous experiences mean he is not ready to call in a psychological specialist.