This is an away game, it will be difficult for Galatasaray. Even though I think it will be difficult, Galatasaray will not lose points away because it is an important game for the championship. I think it will end in a draw at worst. If we win three points in this game, we will be quite relieved and thus the point gap with Fenerbahçe will be widened again. It is one of the decisive games for becoming champions.
Considering the results of 2 latest matches of Besiktas, I don't it will be a difficult match for Galatasaray. Besiktas got 2 losses recently, it showed their bad performance in Turkish league. Meanwhile Galatasaray is still unbeaten, they always got point in each match. Sure, Galatasaray will get a draw at least, they may get a win. I personally assume both Galatasaray and Fenerbahce will get full points in matchday 29.