Complex sentence: Lallana was a member of the Bournemouth Centre of Excellence, where his rich potential was eventually spotted by a talent scout from Southampton, with Lallana snapped up by the Premier League club, joining the Saints Academy as a 12-year old in 2000.
Split into simpler sentences: Lallana was a member of the Bournemouth Centre of Excellence, where he was spotted by a talent scout from Southampton. He joined the Premier League club's Saints Academy as a 12-year old in 2000.