Leganes were angered by Luis Suarez's goal being allowed to stand on Sunday, but Ernesto Valverde says the officials made the right call.
Barcelona will run tests on Ousmane Dembele on Monday after he suffered an ankle injury against Leganes, having previously impressed.
Barcelona just about did enough to avoid dropping points at home to Leganes, as Lionel Messi and Luis Suarez scored late on in a 3-1 win.
Barcelona started with Philippe Coutinho, Ousmane Dembele and Luis Suarez in attack as Lionel Messi was benched against Leganes.
Luka Modric, who was linked with Inter at the start of the season, is contracted to Real Madrid until 2020 and is eyeing an extension.