The 19-year-old Swedish striker scored 3 goals and provided one assist for the Black Cats last season but had to be sold as they were relegated to League One.
The report claims that Tottenham had agreed on a fee with Sunderland for the young striker but they could not find a solution regarding his wage demands.
Asoro joined the Swans for a fee of £2.5m and this is the latest blow for Spurs as we are struggling to sign players before the start of the season.
While we have not sold any player yet, there is a need to bring in fresh faces ahead of the new season. Tottenham have been able to keep their stars even with interest from a number of clubs but not signing players will certainly push us behind our rivals for a top-four spot and more.
Asoro might not have started too many games for us but he had a lot of potential and could turn out to be a star in the future.
We did do pretty well when we signed Dele Alli from MK Dons and this could be one of those moments which could come back to bite us a few years from now.
Asoro would be looking to make a name for himself at Swansea now but he could have been playing in the white of Tottenham.