AC Milan's domestic struggles carried over to the Europa League as they battled to a frustrating 0-0 home draw with AEK Athens on Thursday.
The Rossoneri failed to create a clear-cut opportunity and can consider themselves fortunate to have maintained their two-point advantage at the top of Group D.
Vincenzo Montella's men, whose rollercoaster defeat to rivals Inter on Sunday was their third straight Serie A loss, had been expected to recapture form against the Greek side.
But it was AEK who came closest to a first half opener as Mateo Musacchio gifted an opportunity to Andre Simoes, who was unable to hit the target from a narrow angle.
Milan showed more life after the restart and could have broken the deadlock through Patrick Cutrone, but three points would have been undeserved reward for a limp display.
Instead, the draw will only serve to heighten the pressure on manager Montella, whose side still have work to do to advance to the knockout stages.
Cutrone came in as one of four changes to the side which lost 3-2 in the Derby della Madonnina and the young striker had the ball in the back of the net inside seven minutes, only to be flagged for straying marginally offside.
Despite a lack of possession, AEK had few problems to contend with over the opening 25 minutes as the hosts searched for the kind of cutting edge that has seen them score eight goals in their first two group stage games.
And Milan were almost made to pay for their lethargy when Musacchio was robbed of possession in his own penalty area by Simoes.
From an almost impossible angle, the Portuguese midfielder fired right across the face of goal as Gianluigi Donnarumma left a gap at his near post in anticipation of a cut-back.
The scare was not enough to shock the Rossoneri into life, though, with Petros Mantalos dallying over another promising opening for AEK, before Adam Tzanetopoulos drew a sharp diving save from Donnarumma.
Montella's men did force the visitors into a pair of scrambling blocks late in the half, but the deadlock remained intact at the interval.
Both sides showed more attacking endeavour soon after the restart with Helder Lopes heading over at one end and Andre Silva doing likewise from a Suso corner.
Giannis Anestis was then called on to parry Hakan Calhanoglu's low drive in encouraging signs from a more fluent Milan.
Montella turned to Nikola Kalinic after the hour and the former Italy striker might have wished the next chance had fallen to his Croatian substitute as Cutrone failed to squeeze a finish past Anestis when the ball broke kindly in the area.
Anestis did superbly to smother and stop Suso finding the decisive goal after he had raced unchecked into the penalty area, and the goalkeeper rose to the occasion yet again in stoppage time when he blocked a dangerous Calhanoglu free-kick, marking the final frustration for Milan and Montella from a performance that only raises more questions.
|Sri Lanka close in on first-innings lead in Kolkata|
|Sydney leapfrog slapstick Jets at A-League summit|
|Hamilton: I learned nothing from Rosberg|
|Christensen guides the way for Loftus-Cheek & Abraham at Chelsea|
|Mertens: Sarri´s tactics give Napoli 12 men|
|Bayliss finds positives despite England´s toil|
|Aubameyang back in Dortmund fold pre-Spurs|
|Hafeez should give up bowling after third suspension – Akram|
|Moses heartbroken as Lebanon come up short|
|Fiji upset New Zealand in World Cup quarter-final|
|Marsh desperate to take Ashes chance|
|England struggle in draw against CA XI|
|Spurs erase 23-point deficit to beat Thunder|
|Tonga edge Lebanon to reach World Cup semis|
|Davis suffers concussion against Nuggets|
|Bosz laments ´ridiculous´ goals|
|Broncos GM Elway calls team ´soft´|
|Madrid have best kids stockpiled – Simeone|
|Guardiola backs Stones to get even better|
|Ibrahimovic will start with bench role, says Mourinho|
|Injections to play a friendly – Mourinho slams England over Jones handling|
|Chargers´ Rivers cleared to face Bills|
|Cook grabs RSM Classic lead|
|Nets PG Russell undergoes successful surgery|
|Championship Review: Sheffield United go top|
|Gloucester´s second-half surge stuns leaders Saracens|
|Schurrle: Dortmund couldn´t deal with Stuttgart counter-attacks|
|Conte laments Italy World Cup failure|
|Murray splits with coach Lendl|
|Hartley´s Toro Rosso deal will not affect Porsche status|
|Amiens 1 Monaco 1: Jovetic rescues point but champions give PSG boost|
|Dimitrov eager to keep momentum going after easy Carreno Busta win|
|Stuttgart 2 Borussia Dortmund 1: Bosz pressure builds after more Burki mishaps|
|Sunderland target Coleman steps down as Wales manager|
|Memorable Ashes Moments: Harmison sends down woeful opening wide as England´s defence wilts|
|Conte´s wife tells him to grow a beard – Conte grows a beard|
|Simeone rules out Everton job, promising ´a couple of years at least´ at Atletico|
|Pique to miss Barcelona´s Leganes trip over personal matter|
|Serena Williams reportedly marries Alexis Ohanian in New Orleans|
|UEFA closes Roma ´monkey chanting´ case|
|Swinson set to miss Six Nations after finger surgery|
|Don´t worry about Messi renewal, Valverde tells Barcelona fans|
|Cheika disrespected referee - Jones|
|´Griezmann? We´ll see´ – Valverde won´t rule out Barcelona pursuit of Atletico star|
|Cardinals & Larry Fitzgerald agree to 2018 contract extension|
|Uncapped Enever replaces injured Coleman for Twickenham clash|
|Goffin overcomes slow start & Thiem to set up Federer semi|
|Unsworth surprised to see Allardyce snub Everton|
|Six-week stadium ban for Sale boss Diamond|
|Mourinho has ´immense respect´ for Benitez|
|Howe backs Defoe to make World Cup squad|
|Everton speculation out of my control - Silva focusing on Hornets|
|Conte concerned by Manchester City´s breakaway lead|
|Man City results ´perfect´, but Guardiola demands improvement|
|David Luiz back in Chelsea squad, Conte confirms|
|Recovered Klopp offers Liverpool fitness update|
|Guardiola confident Aguero in ´perfect´ condition despite hospital trip|
|Ibrahimovic, Pogba and Rojo back for Manchester United|
|Fleetwood and Rose look set for desert duel, Fitzpatrick leads in Dubai|
|Heynckes compiling list of potential successors|
|Modric & Carvajal fit for Madrid derby|
|Bayern begin talks over Wagner deal|
|Pulis angered as Chadli sidelined for ´foreseeable future´|
|Neymar to join Ronaldo at Real Madrid? Zidane speaks out on PSG star|
|Edinburgh banking on Barclay after signing Scotland captain|
|Guardiola & Sane complete Man City award double|
|Five-try Holmes makes history as Kangaroos batter Samoa|
|Brave Chapecoense secure top-flight status|
|Mooney seals Australia Women´s Ashes victory|
|Tottenham have overtaken Arsenal as north London´s best - Sherwood|