He then went between Torino and Fiorentina’s youth setups before spending the first few months of last year on loan at SPAL.
But he rejoined Lazio permanently in January, signing a three-year contract with the club, and also represented Italy at Under-15 and Under-16 levels.
Torino also paid their respects to Guerini, tweeting: “The President Urbano Cairo and the whole Torino Football Club, incredulous and deeply saddened, gather around the Guerini family for the tragic death of Daniel, our former Primavera player.”
Hellas Verona FC added: “Hellas Verona expresses deep condolences and heartfelt closeness to Lazio for the tragic death of Daniel Guerini.”
Guerini had only turned 19 on Sunday, and was a highly-rated young player who had big things expected of him in Italy.Follow @mirrorfootballMORE ON