Chicago Cubs Starter Keegan Thompson, who hasn’t pitched in the Major Leagues in over a month, will be activated from the injured list this week. A 26-year-old minor leaguer, few knew the name Keegan Thompson at the start of the 2021 season. Drafted in the third round of the 2017 MLB Draft, Thompson’s name was spoken by Chicago Cubs talent evaluators, insiders and few others. But bursting onto the scene that year, the rookie righty dazzled at every step. Across six starts, 32 appearances and 53.1 innings, Thompson posted a 3.38 ERA. Rarely struggling aside from his first two appearances…