Cagliari confirmed in a statement that Maldini underwent toxicology testing following the crash, which took place overnight between Saturday and Sunday, and that all results came back negative.
"The player will be regularly present with the group this afternoon as training resumes ahead of the team's upcoming fixtures," the club said.
Maldini had reportedly failed an initial roadside breathalyser test at the scene of the accident, with a blood alcohol reading in the region of 0.9 grams per litre, above Italy's legal limit, a result that could see his driving licence suspended for between six months and a year. The forward later posted the results of a private toxicology screening carried out at a clinic in Sardinia, showing negative results across all substances tested, including cocaine, cannabis and amphetamines.
Speaking to the website of journalist Gianluca Di Marzio, Maldini's agent Giuseppe Riso defended his client against the scrutiny that has followed the incident.
"Nobody is disputing that he made a mistake, but there are mistakes and there are mistakes," Riso said. "You have to be careful about what gets written, and the headlines that get made. There needs to be more care and more respect.
"People are always chasing the story with the biggest impact to put him in a difficult position. Daniel is one of the few genuine talents we have."
The incident comes at a sensitive moment for Maldini, who joined Cagliari on loan from Atalanta in the summer in a deal that could become permanent, and has scored in each of the club's last two league wins, over Lecce and Atalanta. Those performances had put him in contention for a first call-up under new Italy coach Roberto Mancini, and Cagliari were quick to stress there would be no disruption to his involvement with the first team as they moved to draw a line under the episode.
Cagliari's own statement was measured in tone, focused on confirming the test results rather than commenting further on the circumstances of the accident.
Riso's intervention went further, framing the coverage as symptomatic of a wider tendency to seize on off-field incidents involving young, high-profile players, and made clear he did not consider Maldini's conduct to warrant the scale of attention it had received.