Reigning champions Germany are in no such position having already confirmed their spot in Russian Federation and, while Low believes Sweden have shown plenty to suggest they deserve to qualify, he also feels Italy failing to qualify would be a blow to the tournament.
The four-time champions dominated possession but struggled to create enough clear-cut chances, as Sweden secured a first appearance at the finals since 2006 courtesy of Jakob Johansson's first-leg strike in Stockholm.
At 39, the 175-times capped Buffon had announced that the finals in Russian Federation would be his last as a player for the national side. The Manchester United forward, due to return within the next six weeks following a cruciate ligament injury, retired from worldwide football after Euro 2016, but the prospect of a World Cup swansong may now prove irresistible. The last time the Scandinavians participated was in 2006.
Mikael Lustig nearly scored an own goal when his deflection hit the bar.
Ventura will have been encouraged early on as Italy dictated the tempo and Marco Parolo saw penalty claims waved away by referee Antonio Miguel Mateu Lahoz following a trip by Ludwig Augustinsson.
Trump sarcastically responds to Kim Jong Un insults
Earlier in the day, Kim lashed out at Trump in statement and called him a "dotard", meaning very old person. Mr Trump also urged other nations to join forces to combat the growing threat posed by Pyongyang.
"The first-leg performance shows that we are perfectly capable of overturning the 1-0 result". We know how to get back up again as we've always done.
Italy went agonisingly close to scoring in the 40th minute.
Bonucci took off his protective mask on the hour mark, with Ventura bringing on Stephan El Shaarawy and Torino striker Belotti.
Mario Balotelli was the star of Euro 2012 but fell out of favor after Italy's woeful showing at the last World Cup, and hasn't been called up by Ventura, while Conte selected him in only one squad.