Diego Costa scored his first Champions League goal for Chelsea as the beleaguered Barclays Premier League champions claimed a much-needed fillip by thrashing Maccabi Tel Aviv at Stamford Bridge.
Willian, Oscar, with a penalty, Costa – on as a substitute after being omitted as one of six changes following the loss at Everton – and Cesc Fabregas scored as the Blues opened Group G with a 4-0 victory.
It was their their first home win of the season and second in all after a miserable start to the campaign which has sparked suggestions of a crisis.
Problems remain as Eden Hazard blazed a sixth-minute penalty over, but Ruben Loftus-Cheek was among those who impressed after recovering from a yellow card in the opening minute.
Mourinho was infuriated Predrag Rajkovic was not sent off for bringing down Willian for the first spot-kick, but luck was on the Blues' side as the Brazilian curled in a free-kick which evaded everyone.
He later went off with a hamstring problem, with Costa coming on, while goalkeeper Rajkovic might have conceded another penalty when Loftus-Cheek was brought down two minutes before the interval.
Then the visitors' two Tal Ben Haims failed to get a grip of Costa, who was felled by the former Chelsea defender, with Oscar converting from the spot.
Costa, who failed to net in Europe for the Blues last term, emphatically volleyed in a cross from Fabregas – a combination which worked wonders for Chelsea in the first half of last season but has stuttered since – before the Spain playmaker struck the fourth on the counter-attack.
Hazard burst down the centre, played it right for Loic Remy, whose shot was palmed by Rajkovic into the path of Fabregas to score.
Eran Zahavi missed a free header and Nosakhare Igiebor somehow failed to convert after 88 minutes as Chelsea kept a clean sheet for the first time this season.
