Aaron Finch is likely to be ruled out of the Pepsi Indian Premier League 2015 edition.On Tuesday against Rajasthan Royals, Finch walked out of the field while batting as he hurt his left leg's hamstring.Finch underwent a scan on Wednesday, and tweeted that the results had not been encouraging.Finch has played three matches this season for Mumbai - his fifth IPL franchise - and scored 23 runs at an average of 11.50. He is also an overseas player for English county defending champions Yorkshire.