Oscar has welcomed back David Luiz to Chelsea following the defender's £32 move on transfer deadline day from Paris Saint-Germain.
Following Luiz's move, the Brazilian midfielder took to Instagram to post a photo of the Chelsea pair on a night out.
Oscar was team-mates with the Brazilian defender for two seasons at Stamford Bridge before Luiz moved to the French champions in June 2014.
During Luiz's first spell at Stamford Bridge, he played 143 games, scoring 12 goals and getting 10 assists.