The 21-year-old has quickly established himself as a key performer for Bruno Genesio's side since breaking into the first team, coming up with four goals and 14 assists in 113 matches.
Truffert ended the 2022-23 campaign with seven assists from 38 games in all tournaments, while he boasts continental experience in the Europa League and Europa Conference League.
According to Football Insider, West Ham are now interested in bringing the Belgian-born defender to the Premier League as they prepare for the possible departure of Aaron Cresswell.
Rennes are understood to be keen to extend Truffert's contract - which runs until 2025 - but the Ligue 1 side could be open to offers of around £15m should an agreement not be reached.
Truffert has been on the books at Roazhon Park since 2015, and he made his first senior appearance for France in a Nations League defeat to Denmark last September.
Speaking of young French talents, Paris Saint-Germain have apparently failed with a bid to sign Lyon starlet Bradley Barcola.
The 20-year-old has earned links with several of Europe's leading clubs after producing seven goals and 10 assists in 31 games for Les Gones in all competitions during the 2022-23 season.
Liverpool are one of the teams said to be keeping tabs on Barcola, whose contract with Lyon does not expire until the end of the 2025-26 season.
Now, journalist Fabrizio Romano claims that PSG recently came forward with a bid worth €30m (£25.8m) for the attacker, but Lyon swiftly rebuffed Les Parisiens' advances.
PSG have already added Lee Kang-in and Marco Asensio to their attacking ranks this summer, though, while the club are also said to be preparing to trigger Ousmane Dembele's €50m (£43m) Barcelona release clause.
Barcola has represented Lyon for 13 years since joining their academy in 2010, and he came up with two goals and two assists for France at the recent Under-21 Euros.
Sticking with the Ligue 1 theme, Aston Villa are thought to be one of a few clubs to have approached Nice over a deal for defender Jean-Clair Todibo.
The former Barcelona starlet has found a home at the Allianz Riviera since his initial loan move in 2020, which was converted into a permanent deal for £7.3m one year later.
Since first touching down in Nice, Todibo has scored two goals in 103 outings for Les Aiglons, helping the team reach the quarter-finals of last year's Europa Conference League.
A report from Nice-Matin claims that Villa are among the teams to have enquired over a summer move for Todibo, who is also wanted by PSG, West Ham, Napoli and Newcastle United.
Nice would supposedly be willing to entertain offers between €40m (£34.4m) and €50m (£43m) for Todibo, who signed a new long-term deal until 2027 back in November.
Saudi Arabian clubs are also rumoured to have been keeping tabs on the situation, but the defender swiftly closed the door on a move to the Middle East.
Finally, Valencia and Anderlecht are reportedly preparing to rival one another for the signature of Brentford winger Sergi Canos.
The 26-year-old has returned to the Gtech Community Stadium following a six-month loan spell with Olympiacos, during which he scored four goals and set up three more in eight appearances.
Canos is only contracted to Thomas Frank's side for another year following a recent extension, though, and according to the Daily Mail, another loan exit could be on the cards this summer.
The report states that Spanish giants Valencia and Belgian powerhouses Anderlecht are leading the race to sign Canos, whose time in Greece was hampered by injuries.
The former Liverpool and Barcelona youngster arrived at Brentford for just £2.5m in January 2017, and he boasts a total of 36 goals and 33 assists in 249 games for the Bees.
Canos featured in every one of Brentford's Championship matches during their push for promotion in 2020-21, and he scored the club's first-ever Premier League goal in a 2-0 win over Arsenal on the opening day of the following season.