What happened: Sánchez spent last season with Sevilla after spells at Barcelona, Arsenal and Inter Milan. El Deportivo had the news first.
Why it matters: The designated-player slot represents a major roster commitment from Montréal. His arrival adds an experienced forward for the club's playoff push.
By the numbers: Sánchez is Chile's all-time leader with 51 goals in 161 appearances.
What to watch: Club confirmation and Sánchez's debut timeline are the next developments to watch.