Italian bookies resumed taking bets on the Serie A title Monday after Inter Milan's lead over Roma was cut to six points.
The SNAI betting organisation is now quoting Inter at 1.18/1 for the title. Roma is a 4.5/1 shot.
SNAI stopped taking bets on February 18 after Inter opened up an 11-point lead.
Napoli handed Inter its first defeat of the championship on Sunday, 1-0. On Saturday Roma beat Parma 4-0.
Next week Roma travel to Napoli with the Neapolitans hoping to repeat their giant-killing act. Inter has an apparently easier task at home to Reggina.