Grey's Anatomy Season 10 is drawing towards its big climax and finale, and fans are looking for more heartbreaking scenes following the last episode "Change of Heart". In the finale episode, an unexpected turn of events will surprise Cristina Yang and the rest of the residents from Grey Sloan Memorial Hospital with the return of Preston Burke.

In past seasons, Burke and Yang have had quite a history. The former was her mentor who trained her to be the surgeon she is now. They almost had a husband-wife relationship until Burke's departure before his marriage with Yang a few seasons back.

In a sneak peek video, Yang is shown giving a speech about her research when a man suddenly turns up in the audience throwing her a series of questions. The clip is not long enough for fans to know who it is exactly, but it is also not difficult to guess that it is likely to be Burke. Various rumors and spoilers about the show have claimed that Burke will make a comeback this finale, and it appears that the clip is that of Yang's former love interest.

In the next episode, We Are Never Ever Getting Back Together, Yang's candidacy as a recipient of the Harper Avery Award is threatened. The prestigious award is only given to practitioners who have made an impact on the medical industry. Grey Sloan and Preston Burke were the only recipients of the award in the world of "Grey's Anatomy."

Yang's much sought-after exit from the series will continue to thrill fans. Is she going to move to Europe for a new life and career? Will there be a positive reunion with Preston Burke? Whatever the answers will be, Sandra Oh's character is definitely going to leave this season.

Watch a sneak peak video of the next episode here.