1997: Oyvind Leonhardsen joins Liverpool
Norway midfielder Oyvind Leonhardsen moved to Liverpool after amassing 76 Premier League appearances in three seasons at Wimbledon.
Leonhardsen was a regular starter in his first campaign at Anfield, scoring six goals in 28 PL matches as the Reds finished third in the table.
After a further nine league outings for Liverpool in 1998/99, he switched to Tottenham Hotspur the following summer.
2004: Chelsea appoint Jose Mourinho
Jose Mourinho arrived in the Premier League when he succeeded Claudio Ranieri as Chelsea manager on a three-year contract.
Having previously led Porto to UEFA Champions League glory, the Portuguese claimed he was "The Special One" in his first press conference at Chelsea, and he lived up to the billing.
The Blues won their first PL title with a record total of 95 points in his first season, and they also won the League Cup in the same campaign.
Mourinho’s Chelsea defended the Premier League trophy in 2005/06, and won both the League Cup and FA Cup the following season before departing in 2007.