Goals from Luis Suarez and Lionel Messi gave Barcelona a 2-0 win over 10-man Villarreal on Sunday and restored their five-point lead at the top of LaLiga.
The Uruguay forward struck with 18 minutes to play at the Estadio de la Ceramica before Messi added a simple second, ending a run of back-to-back draws in the top flight for the Catalans and keeping the title race firmly in their hands.
Messi's goal saw him equal the record of 525 goals in all competitions for the same team in one of Europe's top-five leagues, set by Bayern Munich great Gerd Muller.
Barca, held by second-place Valencia and Celta Vigo in their last two games, had not gone three games without a league win for over a year but found it difficult to break down Javier Calleja's side.
Luis Suarez and Gerard Pique each hit the woodwork but Marc-Andre ter Stegen was called upon to keep the home side at bay, before Raba's red card in the second half left Villarreal up against it.
The visitors had been short of their best but one moment of slick passing carved open the Villarreal defence and allowed Luis Suarez to break the deadlock, and Messi made the points safe with seven minutes remaining.
The victory again moves Barca five points clear of Valencia, six above Atletico Madrid and eight ahead of champions Real Madrid, all three of whom won this weekend.
Pique hit the bar after only three minutes with a header from Denis Suarez's corner, though Ter Stegen had to be alert to deny Roberto Soriano from close range in an evenly contested first half-hour.
A Messi free-kick forced a save from Sergio Asenjo - back in the team in LaLiga for the first time this season after recovering from his latest knee injury - and the Argentina star flashed another shot narrowly wide, but it was a pretty subdued display from the leaders in the opening half.
Villarreal were not looking too stretched by Barca's approach play and Valverde responded by bringing off Denis Suarez for Paco Alcacer just before the hour mark, with the Catalans shifting to more of a 4-3-1-2.
Alcacer almost made an immediate impact, connecting with Jordi Alba's low cross only to be denied by Asenjo six yards from goal, before Messi sent another Alba pass inches wide of the right-hand post.
As Barca suddenly looked to be in the ascendancy, Raba handed them a huge advantage, lunging into a challenge on Sergio Busquets on the edge of the visitors' penalty area and catching him on the foot with raised studs, prompting referee Ricardo de Burgos Bengoetxea to brandish a straight red card.
Luis Suarez was inches from capitalising on that man advantage seven minutes later, nudging Alba's cross onto the right-hand post with an outstretched boot, but the Uruguayan at last made the telling impact in the 72nd minute.
Messi started a quick passing move that saw the former Liverpool striker play a one-two with Alcacer, round Asenjo and slot home for his seventh league goal of the season.
Manu Trigueros brought a flying stop out of Ter Stegen but Villarreal killed off their own hopes of a comeback with eight minutes left. A loose pass allowed Busquets to feed Messi on the edge of the area and the Argentina star burst into space and slotted the ball past Asenjo, securing a 12th win in 15 league games this season.
|Kovac, Robben praise Augsburg after draw|
|Angels star Ohtani to undergo Tommy John surgery|
|Simeone tips Gimenez to be fit for Madrid derby|
|Smith on his NBA Finals miscue: People make mistakes all the time|
|Rams CB Talib to have ankle surgery|
|Cousins ´feeling a lot better´, still unsure when he´ll return|
|I knew we´d be in trouble with Jones on penalties – Mourinho|
|Coyotes forward Galchenyuk expected to miss opener|
|Guardiola won´t compare Foden to Iniesta|
|Lampard shell-shocked as Derby win at Old Trafford|
|Ryder Cup 2018: USA celebrities take the honours|
|Manchester United´s torrid penalty shoot-out run continues against Derby|
|Guardiola: Foden already a great, great player|
|Atletico Madrid 3 Huesca 0: Rojiblancos cruise ahead of Madrid derby|
|EFL Cup: Lampard dumps out Mourinho, Burnley lose at Burton Albion|
|Mourinho denies Pogba row despite stripping midfielder of vice-captaincy|
|Fabinho situation not complicated, insists Klopp|
|Manchester United 2 Derby County 2 (Derby win 8-7 on pens): Lampard heaps pressure on Mourinho|
|Afghanistan snatch tie after Shahzad pummels India|
|Inter 2 Fiorentina 1: D´Ambrosio maintains Nerazzurri revival|
|Oxford United 0 Manchester City 3: Foden stars as EFL Cup holders cruise into round four|
|Cousin takes Gabon post after Aubameyang rejection|
|Bayern Munich 1 Augsburg 1: Neuer error costs champions|
|Paris Saint-Germain must be a Champions League force to help Neymar - Baptista|
|Salgado warns of ´war´ in Spanish football|
|Cech deserves Arsenal place, says Seaman|
|Halep and Garcia among seeds to fall in Wuhan|
|F1 Raceweek: Mercedes taking no comfort in points advantage|
|Benitez charged by FA for referee comment relating to Zaha treatment|
|Cibulkova dumps out hampered Halep in Wuhan|
|Mourinho questions his players amid reports Pogba won´t captain United again|
|European Ryder Cup diary: Fleetwood´s hair delights Poulter|
|USA Ryder Cup diary: Tiger´s roaring reception, McEnroe´s bold prediction|
|Loans to be limited under new FIFA proposal|
|Prolific Nadolo signs new Montpellier contract|
|Modric? For us, Messi is the best – Valverde|
|Murray makes winning start in Shenzhen|
|Mickelson would cherish first victory on European soil|
|Hodge hoping pressure proves too much for South Africa|
|Woodward in show of support for under-fire Mourinho|
|Mickelson jokes he wants ´a shot a side´ from Tiger in Thanksgiving showdown|
|Reed: Captain America is a villain in Europe|
|Duminy to captain Proteas as Elgar replaces injured Amla|
|No Tottenham timeline for Lloris, Vorm returns|
|Woods ready for ´awesome environment´ on Ryder Cup opening hole|
|Tony Bellew determined to prove doubters wrong against Oleksandr Usyk|
|Tuchel explains why he likes Neymar at number 10|
|Manchester United smash revenue record but profits down|
|Furyk downplays Ryder Cup pairings talk, says Tuesday is about individuals|
|Rejuvenated Tiger out to improve poor Ryder Cup record|
|Saunders fined £100,000 for ´sickening´ online video|
|Hazard can reach his full potential with Sarri´s Chelsea - Zola|
|Ryder Cup heading back in Europe´s direction, says Niall Horan|
|Wow! Klopp hails Sarri´s Chelsea transformation|
|Giovinazzi to partner Raikkonen at Sauber in 2019|
|Bjorn backs ´phenomenal´ Rahm to continue trend of Spanish success|
|Durant in no rush to decide Warriors future|
|Rossi to face anti-doping hearing|
|Mignolet to return for Liverpool against Chelsea|
|Premier League ´interesting´ for Germany boss Low|
|Wilder wins Twitter vote to be Joshua´s next opponent|
|BREAKING NEWS: Isco an El Derbi doubt due to appendicitis|
|Juventus won´t rest Ronaldo ahead of Napoli clash|
|Slater cleared to play in NRL Grand Final|
|Top seed Begu sent packing in Tashkent|
|This isn´t my last hurrah in Ryder Cup, insists Poulter|
|Barba back in NRL with North Queensland Cowboys|
|Arsenal wait on Mkhitaryan and Sokratis|
|All Blacks wary of Pumas pack ahead of Buenos Aires Test|
|Ryder Cup has special place in Pep Guardiola´s heart, says Fleetwood|