Complex sentence: In March 1998, he returned to Crystal Palace who had just been taken over by Mark Goldberg, and then relegated from the Premier League, for a brief period, before leaving acrimoniously in January 1999, as the south-London club went into administration.
Split into simpler sentences: In March 1998, he returned to Crystal Palace who had just been taken over by Mark Goldberg. Venables left acrimoniously in January 1999, as the south-London club went into administration.