The Turkish international played a game of foot tennis which was shared on the official FC Barcelona Youtube page.
Turan and Busquets go a few rounds to much applause from fans who turned out to attend the training session that was open to the public.
The reigning La Liga champions take on Villanovense next in the Copa del Rey on Wednesday.
Turan is of course unable to play due to FIFA serving a transfer ban prohibiting them from registering new players.
The Turkish international joined Barcelona on a five-year deal from Atletico Madrid over the summer but has had to wait on the sidelines for his chance to make the team.
Turan has however, been able to play international football and played an important role in helping the Turkish national team reach Euro 2016.