Barcelona went level on points with La Liga leaders Real Madrid after grinding out a narrow win over Getafe.Allan Nyom appeared to put third-placed Getafe ahead but his goal was ruled out by the video assistant referee for a foul on Samuel Umtiti.Antoine Griezmann clipped Barca ahead from Lionel Messi's excellent first-time pass and Sergi Roberto scored their second from Junior Firpo's cross.But Angel Rodriguez's volley set up a tense finale.The 32-year-old, who Barcelona are considering signing in an emergency deal, guided home an expert finish from 18 yards out from Jaime Mata's cross. That was his eighth goal as a substitute this season.Getafe almost rescued a point but Marc-Andre ter Stegen's excellent save denied Angel a second.Under La Liga rules, if a player is out for more than five months, then clubs can apply to sign one player from another La Liga club.With Ousmane Dembele ruled out for up to six months - and Luis Suarez also sidelined - Barca are looking at several options, including Angel, who has a £7.5m buyout clause.Messi has now failed to score in four consecutive La Liga appearances for the first time since October 2013 to January 2014 - although he had set up Barca's previous six league goals before Roberto's strike.Real Madrid can re-establish their three-point lead on Sunday when they host Celta Vigo (20:00 GMT).