Luis Alberto scored one goal and created another for Joaquin Correa, as Bologna had two goals disallowed, so Lazio go top of the Serie A table awaiting Juventus.
Luis Alberto fired Lazio in front with a low shot from the edge of the area in the 18th minute and set up the second for Joaquin Correa three minutes later as the hosts extended their unbeaten Serie A run to 21 games.
Bologna had two goals disallowed in the second half, one for handball and then one for offside following a VAR review.
Lazio have 62 points from 26 games, two ahead of Juventus whose match at home to third-placed Inter Milan on Sunday was one of five postponed because of the coronavirus outbreak.
Serie A standings
Match Events
11' Yellow Card! Schouten booked
18' GOAL! Lazio 1-0 Bologna (Alberto)
Correa ran forward, sent Immobile down the left, rolled across for Luis Alberto to hit it low first-time from the edge of the box, drilled into the near bottom corner.
21' GOAL! Lazio 2-0 Bologna (Correa)
Incredible! Luis Alberto is limping heavily, but still playing and puts through a great slide-rule pass for Correa, whose shot took a massive deflection off Danilo to completely wrong-foot the goalkeeper!
52' Goooal... No! Denswil's goal disallowed after VAR review
Denswil diving header from four yards, Strakosha parried, it ricocheted off the defender again and went in.
This was a clear ricochet, it just hit him as the goal was disallowed after VAR review.
67' Disallowed! Tomiyasu scores but the goal is offside
Palacio nodded back a cross from the by-line, Radu made a mess of his interception and effectively just set up Tomiyasu for the volley!
But VAR ruled it out for Palacio offside...
Player Ratings
