Antonio Conte should say sorry to Diego Costa as his current Chelsea exile is "not good for anyone", according to former Blues boss Ruud Gullit.
Costa scored 20 times for Chelsea as they won the Premier League last season, but he has since been told he is not in Conte's plans for their title defence.
With the Spain international now AWOL in Brazil and giving an interview in the past week claiming to have been treated like "a criminal", a claim that saw Conte burst out laughing when asked about it in his pre-match media conference ahead of Chelsea's trip to Wembley to face Tottenham.
After their disastrous start to the league campaign - a 3-2 defeat to Burnley that saw Gary Cahill and Cesc Fabregas sent off - former Chelsea player-manager Gullit believes it is now time for Conte to resolve the situation.
"It's all been instigated about what happened with Diego Costa," Gullit told BBC Radio 5live. "It's a little bit strange that you hear at the end of the season that you're not welcome, and now he's training somewhere in Brazil.
"That's not good for Costa, not good for the club, not good for anyone. [It was] not very wise to do. You don't do that.
"I think it is a mistake by Conte and I hope that he has learnt from it. He still has the possibility to do something about it, just got to him and say, 'I'm sorry that I did it, you have to come back, we will talk'.
"You need to see each other face to face. You don't need to like each other, but you need to respect each other.
"If he doesn't want to come back then you have to find the best solution for the club."
A return to Atletico Madrid has long been mooted for Costa, but the Spanish club's current transfer registration ban - until January - has left the forward in limbo.
|Ronaldo jets off for a break as Madrid head to Leganes|
|Bastareaud back in one of five France changes|
|Mistake to let Kroos leave Bayern for Madrid - Sammer|
|Short´s fifty and Agar´s spin seal deserved Australian tri-series win|
|Spalletti tips Ancelotti for Italy job|
|I can´t wait for retirement - Federer|
|Mendy on course for World Cup, says Deschamps|
|Man Utd on dismal knockout run, Roma have Shakhtar curse - Champions League in Opta numbers|
|Azpilicueta hoping for greater fortune at Camp Nou|
|Out of nothing he can score goals – Heynckes hails Muller|
|CONCACAF Champions League Review: Giovinco inspires Toronto, Tigres held|
|Steelers LB Shazier says he´s ´best linebacker ever´|
|Ranieri: I´ll quit Nantes if offered Italy job|
|Thiem keeps title defence on track, Monfils saves match point in Rio|
|Barcelona are great even without Neymar – Willian|
|Del Potro, Raonic progress at Delray Beach|
|Dolphins place franchise tag on Landry|
|Colts QB Luck ´extremely optimistic´ about shoulder rehab|
|Conte wants to see out Chelsea contract but has bags packed|
|A´s respond to Gruden´s belittling of Oakland|
|Yankees acquire Drury in three-team deal with Diamondbacks, Rays|
|Messi goal will give Barcelona more space at Camp Nou – Suarez|
|Serena Williams: I almost died|
|Conte defends ´incredible´ Christensen after Barcelona error|
|Bayern taking nothing for granted after 5-0 demolition – Heynckes|
|Valverde: Barcelona away goal not definitive for progression|
|Muller & Robben bemoan poor first half despite Bayern rout|
|Ivashka sets up Wawrinka Marseille meeting|
|Chelsea close to a perfect game against Barcelona - Conte|
|Defending for 90 minutes at Barcelona a ´suicide mission´ - Fabregas|
|Championship Review: Villa miss chance to move into promotion places|
|Messi ends his Chelsea hoodoo|
|Texans release all-time leading tackler Brian Cushing|
|Chelsea 1 Barcelona 1: Messi breaks Blues hoodoo to leave tie in the balance|
|Bayern Munich 5 Besiktas 0: Two-goal Muller inspires emphatic win after Vida red|
|Woods and Stricker appointed USA Ryder Cup vice-captains|
|Wales must attack Sexton and Murray - Gatland|
|De Vrij confirms intention to leave Lazio on free transfer|
|Sanchez move down to Champions League frustration at Arsenal - Mourinho|
|Mourinho suggests Pogba is fit to face Sevilla|
|Clinical Kerber strolls past Strycova in Dubai|
|AFC Champions League Review: Hulk & Oscar lead Shanghai, Jeonbuk Motors hit six|
|Cech expects Ospina to start for Arsenal in EFL Cup final|
|Gueye signs new Everton deal until 2022|
|FA charges Man City and Wigan for failing to control players|
|Aguero faces no action over Wigan fan incident|
|Martin released by Buccaneers|
|Las Palmas get green light to sign Viera replacement amid Nasri talk|
|De Kock, De Villiers & Du Plessis looking to Australia Tests|
|FA issues West Ham with anti-doping charge|
|Florenzi a doubt to face Shakhtar, confirms Roma´s Di Francesco|
|Maybe we ´lock him up or tie him up´ – Montella ponders how to stop Sanchez|
|French rugby crisis could last a long time - Magne|
|Pogba and Ibrahimovic train with Man Utd ahead of Sevilla tie|
|Zidane hints at resting Ronaldo for Real Madrid´s trip to Leganes|
|Biggar, Halfpenny and Williams return to Wales´ starting XV|
|Modric adds to Real Madrid injury worries|
|Braehmer pulls out of Super Series semi-final|
|Wolfsburg turn to Labbadia in fight for Bundesliga survival|
|Hales follows Rashid in signing white-ball deal|
|Wigan to investigate pitch invasion after win over Manchester City|
|Drogba ´couldn´t be more proud´ as son signs for Guingamp|
|Stones making no excuses for shock Wigan defeat|
|Bellugi scathing of Inter form and transfer policy|
|Ringrose could make Six Nations impact after comeback|
|Rakitic: I´ve not seen Messi in the gym this often|
|Winter Olympics 2018: Slovenian ice hockey star Jeglic sent home after positive doping test|
|Sevilla v Manchester United: Montella and Mourinho unified in pursuit of identity|
|Besiktas face Bayern test, Messi seeks to end drought - Champions League in Opta numbers|
|Jose Morais: The Mourinho acolyte bringing Barcelona to Barnsley|