Martin O’Neill has been criticised for his uncharacteristic response in a frosty post-match interview following Celtic’s latest defeat.The Scottish champions were beaten 3-1 at Celtic Park by Ferencvaros in the Europa League on Thursday night.O’Neill refused to explain his decision to change goalkeepers against FerencvarosGettyIt marked a second successive defeat following their 3-0 loss at Rangers in the Scottish League Cup on Sunday.O’Neill’s frustrations were on display following the match as he spoke to TNT Sports’ Connie McLaughlin.The 74-year-old refused to explain his decision to change goalkeepers from the weekend.Instead, O’Neill claimed he would answer the question on Celtic TV in a blunt response.Viljami Sinisalo had come into the side to replace Sam Johnstone, who started the Old Firm derby.What did Martin O’Neill say?When asked by McLaughlin, O’Neill replied: “No, I won’t talk to you about the thinking behind that there. Sinisalo was always going to play that game as well too.“Believe it or not Connie, my job is not to explain every single situation to you, much as you are going to ask and I’m delighted you are.”McLaughlin continued to probe, adding: “The reason I do that is that the fans outside will be asking the same question and it’s my job to do the same?”However, O’Neill bit back, responding: “I’ll tell the fans then,” to which McLaughlin said: “Well, this is your chance to do that then.”The Celtic boss refused to budge, though, stating: “Well, why don’t I just tell the fans through Celtic TV.”Ferencvaros secured a comfortable 3-1 win over Celtic on Thursday nightAFPView Tweet: https://t.co/RdY46I1OcMTheir defeat to Ferencvaros followed a devastating exit from the Champions League last month.Despite leading 3-0 from their play-off first leg against LASK, Celtic were beaten on aggregate following a 5-1 defeat after extra-time in Austria.What did Alan Brazil say about Martin O’Neill’s interview?Alan Brazil has concerns O’Neill’s outburst could mark the beginning of the end for his latest Celtic tenure.However, the talkSPORT co-host stopped short of saying his time at the club is coming to an end.Reacting to the interview on Friday’s Breakfast show, Brazil admitted: “Martin’s been brilliant.“His record at Celtic is magnificent and I’m not saying it’s coming to an end, I’m not saying that, but that really surprised me last night.”O’Neill’s comments were ‘surprising’, says talkSPORT’s BrazilGettyBrazil added: “I understand Martin’s hurting and he’s annoyed, but there’s other ways of getting around that question.”Since returning to the club in January, O’Neill has won 29 of his 38 matches in all competitions, losing just six times.O’Neill’s current deal runs to the end of this season after he was rewarded for winning a league and cup double last term.Following a spell as caretaker boss between October and December he returned to Celtic Park for a second stint as permanent manager.Despite their European woes, his side have won all six of their Scottish Premiership matches so far this season.However, that record will be put to the test against Rangers on Sunday as the sides meet at Parkhead.