What's the deal with sensationalising sport psychology?

At a time of accentuated attention on athletes' mental health, analysis of psychological performance needs to raise its game

During one of Ralf Rangnick's first press conferences as Manchester United manager, he announced he had appointed a performance psychologist to support the first team at Old Trafford.

The move, as he put it, was logical. If you're looking to improve a team's fortunes on the pitch, it surely makes sense to invest in a professional who is devoted to the p…