Ange Postecoglou put Nottingham Forest’s players through their paces in his first training session in charge.The former Tottenham manager was confirmed as the Reds’ new head coach on Tuesday, following the dismissal of Nuno Espirito Santo.Callum Hudson-Odoi revealed Ange Postecoglou had already been pushing his new players on the training pitchGettyForest moved quickly to secure Postecoglou’s services, just hours after parting ways with Espirito Santo on Monday night.This also saw the 59-year-old return to management three months following his shock sacking by Spurs, having won the Europa League days earlier.And after a whirlwind 24 hours at the City Ground, the ex-Spurs boss has now had his first chance to meet some of his new players.Postecoglou took charge of his maiden training session on Tuesday and once he recovered, Callum Hudson-Odoi exclusively told talkSPORT what it felt like.First Impressions of AngeHaving earned a reputation for his all-out attacking style of play at Spurs, the winger revealed Postecoglou had put on an intense first session.With Espirito Santo employing a far more defensive game at Forest, Hudson-Odoi was asked if training had been a culture shock.“Yeah that was a session! I can’t even lie to you,” he told talkSPORT host and former Watford striker Troy Deeney.“For us, it’s building that relationship with him early and getting ideas of what he wants to bring into the team.“When the manager comes in, you have to make sure that you get that quickly because games happen fast and there’s one coming on Saturday [away against Arsenal].“So for us, it’s just making sure we’re ready, we’re prepared and make sure that everyone just knows what he wants us to do, and hopefully apply it in the game.”GettyPostecoglou got to straight work as he looks to put his stamp on Nottingham Forest[/caption]GettyHudson-Odoi helped the Reds secure European qualification for the first time since 1995[/caption]Espirito Santo’s sacking came just four months after securing Europa League qualification last term with a seventh-place league finish.However, a well-documented breakdown in his relationship with owner Evangelos Marinakis eventually spelled the end of his tenure, with a 3-0 defeat to West Ham proving the final straw.Considering the Portuguese coach’s success, fans might expect his dismissal to have raised some eyebrows in the Forest squad.But Hudson-Odoi insisted he hadn’t been sceptical of the decision to appoint Postecoglou, as he revealed he hadn’t contacted anyone else to get the lowdown on his new manager.The 24-year-old said: “I’d rather just wait and see how he is. “As I said, it was a [tough] session! It was a session, I’ll be honest – but it was good. AFPNuno Espirito Santo won 28 of his 73 games in charge at Forest[/caption]“I think for us, you’d rather wait and see what happens than to be asking so many questions. Everyone has different opinions.“So I’d rather just wait and see myself and judge it for myself.”What did Hudson-Odoi say about Nuno Espirito Santo?And despite being excited to start life under Postecoglou, Hudson-Odoi admitted he had been sad to see Espirito Santo depart.The coach took charge at the City Ground in December 2023, just months after the winger’s arrival from Chelsea.Under Espirito Santo, Hudson-Odoi became a key part of Forest’s recent success, as he featured 36 times in the Premier League last season, scoring five goals.Hudson-Odoi spoke highly of Espirito Santo and wished him well for the futureGettyHe said of his relationship with Espirito Santo: “With me and him, it was very close. “We had a good bond and we spoke about everything in every situation, whether it was on the pitch or off the pitch.“He was just trying to get to know me more and I was trying to understand him as well as a coach.“I understand what his ideas were and everything like that. So we definitely had a good bond.”Hudson-Odoi added: “He had a massive impact on me. I think that it was a sad day to see what happened, but at the end of the day, excited for the new chapter as well.“I’m wishing nothing but the best for the future.”Postecoglou’s first game in charge of Forest comes away at Arsenal at 12:30 on Saturday – and it will be exclusively live on talkSPORT.