Complex sentence: Throughout the weeks on "Raw", Michaels got revenge on both Vince McMahon and the Spirit Squad, until the May 22 episode of "Raw", where the Spirit Squad were scripted to injure Michaels' left knee.
Split into simpler sentences: Throughout the weeks on "Raw", Michaels got revenge on both Vince McMahon and the Spirit Squad. On the May 22 episode of "Raw", The Spirit Squad injured Michaels' left knee.