Mauricio Pochettino says Gylfi Sigurdsson would be the perfect player for his current Tottenham squad as the playmaker returns to face Spurs with Swansea on Saturday.
After joining the club during the tenure of Andre Villas-Boas, the Iceland international became a key figure in the London side's midfield.
However, upon the arrival of Pochettino, Sigurdsson fell down the pecking order and subsequently rejoined Swansea City, where he originally made a name for himself in the English top flight.
"After he [Sigurdsson] moved to Swansea, we saw him develop," Pochettino told reporters.
"I think he was a perfect player for us. But, in that moment, it was the club's decision and his decision to move to Swansea to find another way.
"Every time we've met him, he's shown his qualities, not only as a player, but as a man.
"It's a shame, but that's football. Sometimes you spread your weight. But you never know in football."
The 27-year-old has scored 29 goals in 99 league games for the Swans since re-joining them for a reported fee of €10million.