AC Milan were left frustrated after they were held to a goalless draw by Sampdoria in their Serie A clash at Stadio Comunale Luigi Ferraris.
M'Baye Niang was given his first Serie A start for Milan and impressed in front of goal as he partnered Stephane El Shaarawy and Bojan Krkic in attack.
Lorenzo De Silvestre threatened early on as he unleashed a shot at Rossoneri goalkeeper Cristian Abbiati, but the experienced gloveman got down quickly to make the save.
Sampdoria then missed a good opportunity in the 20th minute when Daniele Gastaldello couldn't turn home what seemed to be a simple header.
Milan's first real chance came in the 33rd minute when Ricardo Montolivo smashed a long-range strike on target, but Sergio Romero was up to the challenge.
The away side's poor performance continued just before the interval as Bojan rocketed a strike from 30 yards well over the target.
The Rossoneri improved after the break as Niang gave Romero some problems with a deft nutmeg that forced an acrobatic save.
Sampdoria's Cristian Zapata came close to handing the visitors the lead when he deflected an Eder shot just past the post.
Kevin-Prince Boateng almost broke the deadlock from close range after good work from Niang set up the opportunity, but a goal-line clearance saved the hosts.