Complex sentence: Alfredo Tomassini (29th June 1964-December 8 1987) was a notable football player of the club Alianza Lima until 1987 when he died in an airplane crash known as Football tragedy.
Split into simpler sentences: Alfredo Tomassini (29th June 1964-December 8 1987) was a notable football player of the club Alianza Lima until 1987. Alfredo died in 1987 in an airplane crash known as Football tragedy.