Bruce was resigned to losing Grealish on the cheap before Nassef Sawiris and Wes Edens' takeover last month which saved Villa from possible administration.
Nyland, who was linked with Villa's city rivals Blues earlier in the summer, would become the club's second keeper signing in a matter of days following the loan capture of Andre Moreira from Atletico Madrid.
Ex-Spurs ace Crouch insists that it could be a smart move for Grealish to make the step up to the top flight. "We don't want to lose our best players but it's football and it might happen", he said.
Spurs are in need of an extra English player to meet the regulations of the Champions League otherwise they would be forced to submit a lowered 20-man squad.
Manchester United Contact Atletico Madrid Over Transfer For Godin
But Mourinho's hopes were dashed after he was was told the Uruguayan worldwide has agreed a new deal with Atletico Madrid . He was in fantastic form in the World Cup in the summer, with some describing him as the best defender at the tournament.
Tottenham are yet to add a new recruit to their ranks ahead of the transfer window closing on Thursday. The good thing the owners have been able to do is not let anybody go on the cheap.
"If anybody wants to come and buy our players, they're going to have to find a premium and make sure the owners are comfortable with it", said Bruce.
Villa were plunged into financial turmoil at the end of last season following their heartbreaking loss in the Championship play-off final against Fulham. The ambitious club will move into a new stadium this season.
The 22-year-old has an eye on a place in Gareth Southgate's England squad with the 2020 European Championships in mind, and he will have noticed how home-grown midfield talents like Eric Dier, Harry Winks and Dele Alli have earned worldwide recognition after flourishing under Mauricio Pochettino at Spurs.