Douglas costa not at Robben or Ribery's level-Lucescu

The Shakhtar boss does not think the winger is good enough to force his way into Bayern's starting XI yet - though he is confident in his potentialDouglas Costais not yet ready to displace Franck RiberyandArjen RobbenatBayern Munich, according toMircea Lucescu, the Brazilian's former coach atShakhtar Donetsk.Bayern signed the 24-year-oldfor €30 millionto bolster their options in attack after Robben and Ribery's injury-hitseasons contributed to Bayern's defeats in the Champions League and DFB-Pokal semi-finals.But though Lucescu believes Costa has the potential to eventually become a game-changer for die Roten, he nevertheless maintains hisprotege is not yet of the calibre to fill Ribery or Robben's boots."I don't think Douglas is goodenough to start for Bayern yet," the 69-year-old told Bild. "Ribery and Robben are still on a different plain. But Douglas is can grow further there and still make it. "He has the quality, but the Bundesliga is at a different level [compared to the Ukrainian Premier League]."Costa moved to Donbass Arena from Gremio in 2010 and had gone on to score 38 goals in 202 appearances in all competitions before his transfer last Wednesday.The Brazil international is PepGuardiola's third signing this summer following the arrivalsof goalkeeper Sven Ulreich as well as ex-Red Bull Leipzig loanee and Stuttgart talent Joshua Kimmich.