In pouring rain in Genoa, Chiesa got on the end of a fine move to put Juventus in front after 20 minutes.
Without a goal in his previous two league games, Cristiano Ronaldo endured a frustrating first half, missing several chances while also being denied by some last-ditch Sampdoria defending.
𝕃𝕖𝕒𝕧𝕚𝕟𝕘 𝕃𝕦𝕚𝕘𝕚 𝔽𝕖𝕣𝕣𝕒𝕣𝕚𝕤 💪⚪️⚫️#SampJuve #FinoAllaFine #ForzaJuve https://t.co/yIEZXH2Sif
— JuventusFC (@juventusfcen) 1612042213000
After the break, Sampdoria pressed for an equaliser, but Juve stood firm, and added a late second through Welshman Ramsey as the hosts were caught on the counter in the 91st minute.
The win moves Juve onto 39 points, seven behind leaders AC Milan, as they leapfrogged AS Roma, who are two points adrift in fourth ahead of their match with Hellas Verona on Sunday.
Sampdoria stay 10th on 26 points after a first defeat in three.