Fenerbahce is on 5th place in turkish super league and they simply have not luxury that finish on this position on play europen league.
Only top two teams will have chance to play champions league in next season (first palce directly, second place via qualifications). So if Fenerbahce dont take on of this two places they will big money because they have in team playes as Kuyt, Meireles, Krasic, Emre, Topal, Sow. . They lost 1-2 in last round at home against Sivas and now play away against Mersin.
Mersin is in bad situation and they are on 17th place with 20 points. But they did not lost any of last 4 league games and that can give them hope in this race for relegation positions.
Fenerbahce can be too strong for Mersin at this moment. Fenerbahce played three times against Marsin and won 2-1 in all three games. This time i expect that Fenerbahce defense will not make big mistakes. They are 6 points behind Galatasaray and in next round Fenerbahce will play away again in Trabzon, so i think that they must all points here.