He 's only improved over the past seven years , while Buakaw is in decline .
Keep in mind that since then Petrosyan has not lost once , beating literally everyone worth note in the 70 kg division .
everyone 's only improved over the past seven years , while Buakaw is in decline .
Keep in mind that since then Petrosyan has not lost once , beating literally everyone worth note in the 70 kg division .