Barcelona are reportedly planning a move for Chelsea forward Diego Costa.
The Spanish international joined the Premier League champions last summer but has yet to rediscover his first-season form, having scored just three goals this campaign.
The 27-year-old is reportedly unsettled at the club, and according to Spanish publication Don Balon his displeasure has alerted Barcelona, who are considering bringing Costa back to La Liga.
It is suggested that Barca manager Luis Enrique feels that Costa would give his side another dimension and could also bring the best out of the club's other star players.
Costa scored 21 goals in 37 appearances for Chelsea last season after signing for £32m from Atletico Madrid in 2014.
