PARIS: Paris St Germain lost 1-0 at promoted RC Lens in their first Ligue 1 game of the season on Thursday following a bad mistake by goalkeeper Marcin Bulka, as the French champions suffered in the absence of several players who tested positive for Covid-19. Pole Bulka, 20, tried to play the ball out along the floor to a team mate but Cameroonian forward Ignatius Gango got there first to fire into the top corner and give Lens a surprise lead in the 57th minute. Bulka, playing only his second Ligue 1 match for PSG, was one of several inexperienced players given a chance due to the number of positive tests for the virus, which included first-choice keeper Keylor Navas, world record signing Neymar and France striker Kylian Mbappe. They could only field four players who started their 1-0 defeat by Bayern Munich in the Champions League final on Aug. 23 and struggled to get going against a motivated Lens, who were playing their first home game back in the top flight after five years in Ligue 2. Lens were able to enjoy the moment with 5,000 fans who were allowed into their stadium as part of an easing of coronavirus restrictions at sporting events in France. PSG started the season later than the other teams in Ligue 1 due to reaching the Champions League final, with their first game against Metz rescheduled and the match with Lens, originally set for Aug. 29, also pushed back. Midfielder Marco Veratti put the defeat down to a lack of preparation time due to the Champions League final as well as the coronavirus absentees.