Loads of Tottenham Hotspur fans on Twitter have been reacting to Troy Parrott's notable absence from the club's Champions League training session ahead of hosting Olympiacos in north London on Tuesday night.

The 17-year-old may be yet to make either his Premier League or European debut for the first team, but he was often involved in training at this stage when Mauricio Pochettino was manager, even if he then featured for the U19s in the youth league on the afternoon before the senior fixture.

There was no sign of the teenager in what was Jose Mourinho's first Champions League session as Spurs boss though, which understandably raised some concerns from supporters.

The former Chelsea and Manchester United chief hasn't exactly been known for his positive work with younger players throughout his managerial career, but his praise for the academy shortly after his appointment suggested he may be open to changing his ways.

The absence of Parrott may suggest that isn't the case so far, although to be fair to the 56-year-old Oliver Skipp and Japhet Tanganga were both present at Hotspur Way on Monday.

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That didn't stop Tottenham fans commenting, and while one said they "do worry" about Parrott who has been linked with moves to Bayern Munich and Borussia Dortmund, another individual was "shocked" that he wasn't involved.

Here is just a selection of the Twitter reaction...

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