Eder and Manolo Gabbiadini continued Sampdoria’s improving form and kept Catania bottom of the table.
The Blucerchiati were on fire since Sinisa Mihajlovic replaced Delio Rossi, earning two draws against Lazio and Inter along with a midweek 4-1 Coppa Italia demolition of Verona. Catania, one of the Serbian tactician’s former clubs, had lost all seven away games this season and were propping up the table. Panagiotis Tachtsidis and Pablo Barrientos sat out bans with Giuseppe Bellusci, Gonzalo Bergessio, Mariano Izco and Sergio Almiron injured.
The Elefantini’s only Serie A victory at Marassi was in 1964-65. Eder went down under a clumsy Norbert Gyomber challenge after nine minutes, but the referee waved away penalty appeals.
Manolo Gabbiadini forced Alberto Frison to palm round the post and Nicola Pozzi blasted off target.
Sampdoria finally broke through after the restart when Lorenzo Di Silvestri chipped in a cross from the right for an Eder header into the far bottom corner.
Frison was at full stretch to palm away an Eder low drive and Tiberio Guarente stuck a toe in to stop Gabbiadini tapping in Eder’s assist.
Gabbiadini put the result under lock and key with a sensational solo effort, as he ran on to a ball down right, cut in and curled across the goalkeeper into the far top corner.
Gabbiadini had the chance to add more goals to his tally in the final stages, but tried to score from an improbable angle and then fired straight at the goalkeeper.