Mauricio Pochettino has vowed not to risk the dressing-room harmony at Tottenham with new signings in the same way he did at Southampton.
Spurs boss Pochettino has effectively distanced himself and the north London club from a January deal for West Brom striker Saido Berahino – a long-term target – in highlighting Osvaldo’s unsettling stint at St Mary’s.
Osvaldo was suspended by Southampton for two weeks for headbutting Jose Fonte in a training-ground bust-up in January 2014, with three loans then preceding his August 2015 departure.
Berahino has cut a divisive figure at West Brom and Pochettino’s desire not to wreck Spurs’ happy camp hints at a cooling of interest in the 22-year-old.
“I can tell you now in this case I think it was our mistake, because of what he showed in the problem with Jose Fonte,” Pochettino said of signing Osvaldo at Southampton. “I think in this moment you realise it was a mistake.
“I can recognise, and Osvaldo, to be fair, he recognised it was a big mistake for him to come and for us to sign him. But I am very honest about this.
“For discipline and good behaviour, it’s important players are always kind with team-mates. It was unacceptable behaviour, and for that we were very strong with him.
“Football is a big, big world and it’s impossible for a manager or people in football who make decisions to say they have never ever made a mistake. Anyone saying that is a big liar.
“You’ve got to improve and learn from that, to make sure you don’t repeat those mistakes.
“It’s a consequence of our decisions that we have a good dressing room at Tottenham now, because it’s not magic.
“We have a very good changing room now but we’ve worked very hard to try to build relationships between the players and the staff to create a very good level of training, discipline and mentality. And this is important to keep now.
“The most important thing now is to settle and to grow in this idea that we need to work hard, have a good mentality, respect and discipline. This is the most important thing for the future.”