Write a question about the following article: On 10 February 2016, qualifying for the sixth Copa del Rey final in the last eight seasons, Luis Enriques Barcelona broke the clubs record of 28 consecutive games unbeaten in all competitions set by Guardiolas team in the 201011 season, with a 11 draw with Valencia in the second leg of the 201516 Copa del Rey. With a 51 win at Rayo Vallecano on 3 March, Barcelonas 35th match unbeaten, the club broke Real Madrids Spanish record of 34 games unbeaten in all competitions from the 19881989 season. After Barca reached 39 matches unbeaten, their run ended on 2 April 2016 with a 21 defeat to Real Madrid at Camp Nou. On 14 May 2016, Barcelona won their sixth La Liga title in eight seasons. The front three of Messi, Suarez and Neymar finished the season with 131 goals, breaking the record they had set the previous year for most goals by an attacking trio in a single season. On 8 March 2017, Barcelona made the largest comeback in Champions League history in the 2016-17 UEFA Champions League in second Leg, Barcelona 61 Paris Saint-Germain (aggregate score 65), despite losing the first leg in France by a score of 40. On 29 May 2017, former player Ernesto Valverde was named as Luis Enriques successor signing a two-year contract with an option for a further year.

Question about the article:
How many years did it take before the Guardiolas' record was broken?