Erik ten Hag's handling of Alejandro Garnacho shows his biggest strength has become a weakness

It was fascinating to watch Alejandro Garnacho and Erik ten Hag when the youngster was substituted in the second half of Manchester United's game against Coventry City.

Garnacho was replaced by Antony in the 66th minute of the FA Cup semi-final at Wembley when United were 3-0 up and his name was sung by fans as he left the pitch. Ten Hag clasped hands with Garnacho and although the exchange didn't exude warmth, it suggested they had buried the hatchet after the 19-year-old had liked tweets questioning his removal in the draw against Bournemouth at the Vitality Stadium.

Just five minutes after Garnacho was substituted, Coventry were given a glimmer of hope of a late comeback when Ellis Simms scored with a well-taken half-volley. Kobbie Mainoo was substituted for Christian Eriksen and a full-blown capitulation followed, with Coventry coming close to winning the game 4-3 in the last seconds of extra time.

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Ten Hag deserved praise in the first half for his involvement in the opening goal - he gave tactical instructions to Diogo Dalot who provided the assist for Scott McTominay - but the best and worst of his in-game management was seen in an unforgivable performance. The substitutions of Garnacho and Mainno didn't work, United looked weaker for their removal and, with the benefit of hindsight, they shouldn't have been hooked.

Both are young players and have featured heavily over the last few months, but the chances of a collapse would have been slimmer if they'd stayed on due to their quality. Antony is not as robust as Garnacho and Eriksen is lightweight compared to