Complex sentence: On 1 November, Boca Juniors were crowned champions of the Argentine Primera División, in which Calleri scored 10 goals in 26 matches and achieved his first title as a professional player.
Split into simpler sentences: On 1 November, Calleri and Boca Juniors were crowned champions of Argentine Primera División. He scored 10 goals in 26 matches, achieving his first title as a professional player.