Frenchman Lenglet's first league start since his 36 million-euro move from Sevilla turned sour when he was shown a straight red card in the 35th minute at the Nou Camp following a coming together with Pons, after referee Jesus Gil Manzano consulted the video assistant referee (VAR).
Gerardo Martino enjoyed his competitive debut with Barcelona more than Carlos Ancelotti's with Real Madrid as the La Liga champions stormed to a 7-0 rout of Levante in their season opener at the Nou Camp on Sunday.
Lionel Messi scored two spectacular free kicks as Barcelona thrashed local rivals Espanyol 4-0 in Saturday's Catalan derby to move three points clear at the top of La Liga.
Barcelona have had to overcome many changes to win their 23rd La Liga title, coach Luis Enrique said.
Images from Saturday's La Liga matches.
Brazilian defender Filipe Luis scored for the second game running as Atletico Madrid beat Real Sociedad 1-0 on Tuesday to rack up a fifth straight win in La Liga and provisionally consolidate third place in the standings.
Champions Barcelona suffered a humiliating 2-0 home defeat to Hercules on Saturday when Nelson Valdez struck twice to give the tiny promoted club a shock La Liga victory at a stunned Nou Camp stadium.
Atletico Madrid got their La Liga campaign up and running in less than convincing fashion when Antoine Griezmann's deflected free kick secured an edgy 1-0 win at home to promoted Las Palmas on Saturday.
Barcelona had to come from a goal down to rescue a 1-1 draw at mid-table Levante on Sunday, leaving Atletico Madrid with a chance to go top of La Liga.
Real Madrid romped to a 4-1 win at tiny Eibar on Saturday, provisionally returning to the top of La Liga, despite the absence of Gareth Bale and Cristiano Ronaldo for Zinedine Zidane's side.
Real Madrid coach Zinedine Zidane is under pressure to break up his misfiring attacking trio of Cristiano Ronaldo, Karim Benzema and Gareth Bale when he takes the La Liga leaders to Alaves on Saturday.
West Bengal Chief Minister Mamata Banerjee visited the Santiago Bernabeu stadium in Madrid along with La Liga President Javier Tebas.
Real Madrid climbed back above Barcelona to the top of La Liga when goals from former Liverpool pair Xabi Alonso and Alvaro Arbeloa helped them to a stirring 3-2 comeback win over Atletico Madrid on Sunday.
Rafael van der Vaart admitted to handling the ball in the lead up to Real Madrid's opening goal in their 3-1 victory over Sporting Gijon in La Liga on Saturday.
Gary Neville's disappointing start as Valencia coach continued when the ambitious Singapore-owned club drew 2-2 at home to lowly Rayo Vallecano in La Liga on Sunday, prompting more rumblings of discontent from the fans.
Cristiano Ronaldo scored a hat-trick and passed the landmark of 300 club goals as Real Madrid put a turbulent week behind them with a 4-0 win at home to Getafe in La Liga on Sunday to close to within four points of second-placed Atletico Madrid.
Xavi mentioned again on Saturday that the club faced problems. Similar comments had reportedly annoyed Laporta earlier in the season.
Real Madrid forward Vinicius Jr scored a hat-trick to help the LaLiga champions snap a two-game winless run in all competitions.
The pair, who are third and second respectively in La Liga, were hit with the bans by FIFA for breaching rules on signing non-Spanish under-18 players.
Zinedine Zidane's Real side demonstrated their new-found grit to re-take the lead
Lionel Messi became the first player to notch 300 La Liga goals as his double blast powered Barcelona to a 3-1 win at Sporting Gijon that sent them six points clear at the top of the table on Wednesday.
News of all that's transpired on and off the football field
Alexis Sanchez hit a hat-trick as Barcelona swept aside Elche 4-0 to return to the top of La Liga on goal difference ahead of Atletico Madrid on Sunday.
Having absorbed the body blow of losing striker Radamel Falcao in the close season, Atletico Madrid have emerged as genuine contenders to break the title stranglehold of Real Madrid and Barcelona.
A first-half double from Gareth Bale helped Real Madrid cement their position at the top of La Liga with a 3-0 win at home to Leganes on Sunday. Reeling from a chaotic midweek 3-3 draw at Legia Warsaw in the Champions League, Real got off to a slow start against neighbours Leganes, but Bale put them in charge in the 37th minute. The Wales international, who netted a sensational half volley against Legia, raced onto a through ball from Isco that split the visiting defence and rounded goalkeeper Jon Serantes to tuck the ball inside the near post from a tight angle.
Real Madrid have reluctantly agreed to play their La Liga match at Rayo Vallecano at 1745 GMT on Monday, a day after the game was abandoned because of alleged lighting sabotage at Rayo's Estadio de Vallecas stadium.
Real Madrid closed to within two points of La Liga leaders Barcelona after demolishing nine-man Rayo Vallecano 10-2 while Atletico Madrid missed a chance to seize top spot outright by losing 1-0 at Malaga.
Real Madrid moved to within a point of La Liga leaders Barcelona after Karim Benzema, Isco, Gareth Bale, James Rodriguez and Cristiano Ronaldo all scored in a 5-1 thrashing at struggling Getafe on Saturday.
Barcelona's bid for a fourth straight La Liga title is foundering due to their erratic away form but Tuesday's 3-1 Champions League victory at Bayer Leverkusen suggests they are unlikely to suffer the same problem in Europe.
Rampant unbeaten leaders Barcelona ended the first half of the La Liga season with a record 55 of a possible 57 points when Lionel Messi scored one goal and had a hand in two more in a 3-1 win at Malaga on Sunday.
Real are third in the league standings with 54 points after 28 games, two behind second-placed Atletico Madrid who visit Athletic Bilbao later on Saturday and nine points behind leaders Barcelona who play at Real Betis on Sunday.
Cristiano Ronaldo continued his rich vein of form by scoring twice in Real Madrid's 2-1 home win over struggling Sporting Gijon on Saturday, although the La Liga leaders got a lucky break when the visitors squandered a second-half penalty.
Real Madrid conceded a late freekick to draw for the second time in four days as they were held 1-1 at struggling Villarreal, cutting their lead at the top of La Liga cut to six points on Wednesday.
Barcelona fell to a first home defeat in any competition for more than two years
Real Madrid took full advantage of Barcelona's shock defeat at Real Valladolid with a 3-0 home win over 10-man Levante on Sunday that put Carlo Ancelotti's in-form side three points clear at the top of La Liga.
Barcelona stayed hard on the heels of La Liga leaders Real Madrid when Lionel Messi's brilliance lifted a side containing several youngsters from the club's B team to a 2-1 win at home to Real Sociedad on Saturday.
Apex football body FIFA and the International Football Association Board (IFAB), which set the rules, have issued new guidelines ahead of the restart of the Bundesliga.
Cristiano Ronaldo took his tally for the La Liga season to a phenomenal 13 goals in six appearances with his third treble of the campaign as Real Madrid romped to a 5-0 win at home to Athletic Bilbao on Sunday.
Real Madrid got their LaLiga title defence off to a limp start as they were held to a 1-1 draw at Mallorca.
Barcelona slipped five points behind La Liga leaders Real Madrid when Alvaro Vazquez netted a shock late equaliser to snatch a 1-1 draw for Espanyol in the Catalan derby on Sunday.