The La Liga champions tracked the Brazilian international throughout the summer, however saw attempts to bring him to the Camp Nou fail over a dispute with Chelsea over the transfer fee. However Barca manager Gerardo Martino is eager to bolster his defensive options with Carlos Puyol and Gerard Pique increasingly injury-prone and hopes a revived bid for Luiz, 26, will ultimately end in success. Luiz is now back in training following a knee injury, however prior to that setback Blues manager Jose Mourinho had omitted him from his starting line-up with John Terry and Gary Cahill preferred in central defence.