Complex sentence: Four months before their relegation in 2003, they famously eliminated Premier League club Everton from the FA Cup in an Everton team which included then a 17 year old Wayne Rooney-ironically they were being managed by former Everton captain Kevin Ratcliffe at the time.
Split into simpler sentences: Four months before their relegation in 2003, they famously eliminated Premier League club Everton from the FA Cup in an Everton team that included a 17 year old Wayne Rooney. Ironically, they were managed by former Everton captain Kevin Ratcliffe at the time.