The Blues went without a trophy in Jose Mourinho's first season back in West London, but they showed plenty of encouraging signs that they will mount a title bid in the very near future - which could be next season after Mourinho has gone on a stunning transfer spree.
Barcelona midfielder Cesc Fabregas and Atletico Madrid striker Diego Costa are widely expected to arrive after the World Cup, and Costa could be joined at Stamford Bridge by his Atletico team mates Tiago Mendes - formerly of Chelsea - and Brazilian left back Filipe Luis.
The Blues must sign a top left back in order to replace the long-serving Ashley Cole, as the 33-year-old leaves the club upon the expiration of his contract. Mourinho has been linked with swoops for Southampton's Luke Shaw and Sevilla's Alberto Moreno, but it seems 28-year-old Luis is the left back of choice for Chelsea.
Whilst many will expect him to start immediately, Spanish full back Azpilicueta - who, whilst right footed, played admirably on the left hand side of the Chelsea defence - says he can expect competition for places if he does indeed sign this summer.
"When you play in a top team there’s always a lot of competition for spots," said former Marseille and Osasuna defender Azpilicueta, "I always fought for my spot with respect to all my teammates and will continue doing so."
Whilst Azpilicueta may feel that he is in direct competition with Luis for a position on the left hand side, the Spaniard's development last season could lend itself to Mourinho playing both. Azpilicueta is, by nature, a right back, and Branislav Ivanovic doesn't offer as much going forward as the 24-year-old does.
Azpilicueta could line up alongside Gary Cahill, John Terry and Luis in the back four next season - yet whilst Azpilicueta could move to the right, Luis should still expect competition for places, especially if Mourinho chooses to stick with the tried and tested Ivanovic.