Former Chelsea star Oscar, believes Mauricio Pochettino will make the Blues great again in the upcoming year.
Chelsea Online News:

The Brazilian revealed if he would ever consider a return to the Premier League while speaking exclusively to talkSPORT. He also stated that he expects development at Stamford Bridge.
Chelsea signed Oscar on a five-year contract. On 19 August 2012, Oscar made his debut for Chelsea by coming on in the 64th minute for fellow debutant, Eden Hazard in their opening game of the 2012–13 season against Wigan Athletic.
READ | Frank Lampard exposes Chelsea’s major problem for Mauricio Pochettino vs Manchester United
READ | Premier League window points to first Chelsea and Mauricio Pochettino transfer in Massive clear out
During his first season with the Blues, Oscar played 64 games in all competitions, scoring 12 goals and providing 11 assists. Before leaving Chelsea for Shanghai, he had played 131 Premier League games, with 21 goals and 24 assists.
The 2014-2015 season was his best of his career, with 6 goals and 8 assists, helping Chelsea win the league title. With the Blues, he also won the Europa League in 2012-2013 and the Carabao Cup in 2015.
The former Chelsea midfielder Oscar had previously spoken of his desire to return to the Premier League. In an interview with Premier League Brasil, the Brazilian said the league is his favorite in the world and he would love to play in England again.