The Italian football federation has set up a commission to investigate whether Lazio should share the 1914-15 Serie A title with Genoa for the season that was interrupted by World War I, according to a report.
More than 30,000 Lazio supporters signed a petition calling for the probe in the hopes that the club could be crowned Italian champions for a third time, pulling them level with neighbours and arch-rivals AS Roma on three Italian titles, Reuters reports.
Genoa and Lazio were due to meet in a final after each qualified through their respective regions in 1915, but Italy entered World War I before the match could be played.
The match never took place and in 1919 the federation decided to award the title to Genoa.
Italian media have said that the decision was based on the reasoning that Genoa were generally regarded as the better of the two teams.
"It is a legitimate Scudetto," Lazio president Claudio Lotito told Italian media on Thursday. "It was taken away from us by the war."
- SS Lazio (@vola_lazio) March 15, 2016
The FIGC is due to announce its decision on Aug. 4.
In its early years, from 1898 until 1926, the Italian championship consisted of regionalised qualifying groups, with a one-off end-of-season final to decide the winners. Teams from the southern part of the country were excluded.
From 1926 to 1929, a national championship was played, although with teams still divided into two groups. Serie A, a single national league, was started in 1929.
Juventus are Italy's most successful domestic club with 32 titles, followed by Inter Milan and AC Milan and 18 each. They are followed by Genoa, who won the last of their nine titles in 1924.