|Date of birth||13 May 1992|
|Place of birth||Mede, Italy|
|2009–2010||→ Chievo (loan)|
|* Senior club appearances and goals counted for the domestic league only.
Born in Mede, Lombardy, Tonani joined Lombardy side F.C. Internazionale Milano in 2005. He played from Giovanissimi Regionali under-14 team to Allievi Nazionali under-17 team in 2009. He scored 12 goals in regular season, behind Simone Dell'Agnello and Giuseppe Angarano as third highest scorer of the team. The team finished as the runner-up. In August 2009 Inter decided to sell him to Chievo along with Filippo Fracaro (free), Edile Micheletti Awoh (loan) and youngster Francesco D'Ascanio (outright deal). He was the member of Primavera under-20 team along with Fracaro and Micheletti Awoh. In June 2010 he was signed in co-ownership deal for a peppercorn fee of €500. On 22 June 2011 Chievo signed Tonani and Rincón outright, while Michele Rigione joined Inter outright. Marco Andreolli also bought back by Chievo.
On 19 August 2011 he joined Pro Vercelli in another co-ownership deal. He made his league debut on 25 September, substituted Pietro Iemmello in the second half. He also played in Campionato Berretti, the Lega Pro equivalent of Primavera League.
- "Championship ALLIEVI NAZIONALI 2008/09". FC Internazionale Milano. www.inter.it. Retrieved 19 September 2011.
- "Under-17s defeated: thanks all the same". FC Internazionale Milano. www.inter.it. 19 June 2009. Retrieved 22 October 2011.
- FC Internazionale Milano Spa 2009–10 Bilancio. FC Internazionale Milano (in Italian). Registro Imprese & C.C.I.A.A. ca. January 2011. Check date values in:
|date=(help); External link in
- "Le operazioni con l'Inter: Rincon al Chievo" [The operations with Inter: Rincon to Chievo]. AC ChievoVerona (in Italian). 22 June 2011. Archived from the original on 28 June 2011. Retrieved 23 June 2011.
- "UFFICIALE: Davide Tonani firma per la Pro Vercelli". FC Pro Vercelli 1892 (in Italian). 19 August 2011. Retrieved 22 October 2011.
- "PRO VERCELLI-PISA: 0-0 RISULTATO FINALE". FC Pro Vercelli 1892 (in Italian). 25 September 2011. Retrieved 22 October 2011.
- "BERRETTI SUPER: TUTTI I RISULTATI DI SABATO 17". FC Pro Vercelli 1892 (in Italian). 18 September 2011. Retrieved 22 October 2011.