Barcelona travels to face Eibar on Sunday, continuing its pursuit of Real Madrid in La Liga.
The victory over the Basque side came at a price for Barcelona after Busquets was forced off in the eight minute of the game following a heavy tackle in his ankle from Gonzalo Escalante.
Luis Enrique feels Barcelona still need to improve if they are to reach their targets this season after they beat Eibar 4-0 on Sunday to stretch their winning run to four games in all competitions.
From then, familiar sources Luis Suarez, Lionel Messi and Neymar sealed the points for the Spanish champions.
"The important thing is that we can help the team, I am happy to have helped tonight and obviously I'm happy to score too", added Luis Suarez.
Captain Vicente Iborra scored twice - and also put through his own goal - as Sevilla won their fifth game in a row to go just one point behind leaders Real Madrid.
The timing of his return will depend on the recovery, however reports in Spain suggest he is likely to be sidelined for at least two weeks, ruling him out of the Copa del Rey quarter-final second leg with Real Sociedad on Thursday.
Portugal global Andre Gomes is expected to fill in for Iniesta after his strong display after replacing him in the second half at Real Sociedad where Barca picked up a first win since 2007.
Despite stringing together three wins on the bounce, Enrique admitted Iniesta will be a big loss to his side.
"We said we needed to get better results and that's what we're doing, and that's giving us more confidence, but we're still far from the level we want to be at".