Jose Mourinho may have afforded himself a wry smile following Manchester United's surprise 2-1 Champions League defeat to Istanbul Başakşehir on Wednesday.
The now-Tottenham boss had an up-and-down spell during his time in charge of United, winning two trophies in his two-and-a-half years at Old Trafford before being sacked following a poor run of form.
Nevertheless, he has regularly spoken with pride about what he achieved at the club - and he has no doubt been watching with interest to see how his successor Ole Gunnar Solskjaer has been getting on.
It is fair to say that the Norwegian manager has also himself had a mixed bag of success at United, with last season's third-place finish and the occasional big Champions League win tainted by
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