Daniel Ciofani gave Frosinone a shock victory away to Sampdoria that drags them closer to safety, as Fabio Quagliarella hit the upright.
It was an aggressive start from the Canarini, as Marco Capuano’s header from a corner skimmed the woodwork in the opening two minutes.
Samp had sterile possession, but Frosinone took the lead when Daniel Ciofani flicked in an Edoardo Goldaniga pull-back from the by-line almost with his back to goal from six yards.
Fabio Quagliarella later thought he had equalised, but his volley at the back post was palmed on to the upright by Marco Sportiello.
Frosinone thought they had doubled their lead from a corner, but the offside flag was up as Marcello Trotta flicked it on for Chibsah at the back post. Finally, Samp were simply unable to break Frosinone down.