Arop aims for 'next gear' with Grand Slam Track after capturing Olympic 800m silver

Marco Arop, who ran to an Olympic silver medal in August, is the first Canadian to join Grand Slam Track before the professional league's inaugural season in 2025.The reigning 800-metre world champion's contract signing was announced Tuesday."Running has always been about finding that next gear. … It's about constant growth and seeing where my training can take me," Arop told Grand Slam Track. "I'm incredibly excited to get this thing going."The league is the brainchild of retired U.S. sprinter