Los Angeles Rams coach Jeff Fisher might have expected that confirmation of his contract extension brought with it a certain amount of job security.Fisher had penned a deal with the NFL franchise until 2018 ahead of the new campaign, but the development was made public only last week.The Rams subsequently lost to the Atlanta Falcons on Sunday, a record-equalling 165th defeat for Fisher, and within 24 hours he had been shown the dr.Eight days was all that separated the announcement of his extension and his sacking, but as these sportsmen could attest, he is not alone in seeing his job prospects change so swiftly.Emmanuel Eboue (Sunderland)With the Black Cats locked in another battle against Premier League relegation, manager Sam Allardyce turned to an experienced head to help drag them away from danger.Former Arsenal and Galatasaray defender Emmanuel Eboue beamed for photographs as he penned a short-term deal at the Stadium of Light.Hes a terrific guy, a very, very gd talker as well as a gd player, Allardyce said at the time. Hopefully when the test comes, he is fit enough to cope.However, the test would never come for the Ivorian. Eboue had his contract terminated by Sunderland on March 31 -- 22 days after he had signed -- due to a 12-month FIFA suspension. He never made an appearance for the club.Sergi Guardiola (Barcelona B)Proponents of social media believe that it provides an essential link between sports people and their fans, but it can also become a hindrance.Dec. 28, 2015 could have been the happiest day of Sergi Guardiolas ftball career. The forward was about to sign for Barcelona B, and while that meant playing in Spains third tier, who knew what the future could hold?Unfortunately for Guardiola, though, a scan of his Twitter feed made for unpleasant reading if you were a Barcelona fan, or official.Two years previously the forward had fired off some pro-Real Madrid, and anti-Barcelona and Catalonia, tweets. His career at the Camp Nou lasted a matter of hours.Eddie Jones (Stormers)When Stuart Lancaster was shown the dr by the Rugby Ftball Union following Englands limp 2015 Rugby World Cup exit, the governing bodys chairman Ian Ritchie promised to cast his net far and wide.A first foreign coach of Englands national rugby team was mted, but there was a problem -- the RFUs preferred candidate had only just started another job.Eddie Jones was flavour of the month having guided Japan to a World Cup win over South Africa, but insisted he was wholly committed to the Stormers as he was unveiled by the Super Rugby franchise on Nov. 12, 2015.In fairness, Jones also told reporters to never believe what you read in the papers and eight days later he was unveiled by the RFU. Cape Towns loss has very much been Englands gain.Paul Sturrock (Sheffield Wednesday)Sheffield Wednesday began the 2006-07 Championship season with a degree of confidence having secured their status in the division with a run of one defeat in nine games at the end of the previous campaign.A new four-year contract for manager Paul Sturrock duly arrived, with Yorkshire rivals Leeds sniffing around the former Southampton boss.However, the Owls endured a miserable start to the new season, with a 4-0 defeat to Colchester United on Oct. 18 their sixth in 12 league games.It proved one t many for Sturrock, who departed Hillsbrough less than a month into his new bumper deal.John Obi Mikel (Manchester United)Chelseas capture of John Obi Mikel in 2006 was far from straightforward.Indeed, the combative midfielder had been paraded as a Manchester United player in Norway in April of the previous year, assigned the No. 21 shirt and loaned back to Lyn, his parent club.That particular development angered Chelsea, who had reportedly paid for some of the Nigerians education and had a separate agreement with his agents.A court case ensued, with Chelsea eventually getting their man at a cost of ￡16 million -- ￡12m of which went to United, for whom Mikel never played.With his former Blues boss, Jose Mourinho, now in the Old Trafford hotseat, rumours have swirled that he could finally be set for a move to Manchester. 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The Magic Millions might come t sn for impressive Mnee Valley winner Cao Cao with his trainer lking at the Group One Blue Diamond Stakes a few weeks later.Mick Price indicated after the colts strong win at Mnee Valley on Saturday he was likely to head to the sales-restricted $2 million Magic Millions at the Gold Coast on January 14.A day later, Price said after inspecting Cao Cao, he thought it might be the right time to give him a break and instead target the Blue Diamond Stakes in late February.He said he wold discuss the options with Cao Caos owners, Sun Bldstock.Im not sure whether Ive got enough horse left to go to the Magic Millions or not, Price told RSN927.I had a brief chat to Sun Stud yesterday and they were sort of thinking, which way do you go? Do you go to the Magic Millins or do you go to the Blue Diamond?Just timing wise I think it would be beneficial for that horse to have a little bit of a breather.ddddddddddddSo Ill probably have to sit down with them during the week and just give an opinion and see what they want to do.But I think, what I saw this morning with him, that he would be better off having a break and setting him for the Blue Diamond.Cao Cao picked up strongly in the straight on Saturday to win the 1000m race by 2-3/4 lengths at his second start.Earlier this month he finished second to Aspect in the Group Three Maribyrnong Plate at Flemington.Cao Cao was a $350,000 yearling at this years Gold Coast Magic Millions sale. ' ' '