What happened: Clubs across the majors documented player arrivals on Monday afternoon as midsummer events got underway. Eight hitters will compete across three rounds for the derby chain before Tuesday's exhibition.

Why it matters: The midsummer break marks the transition into the second half of the regular season schedule. Front offices now enter a final evaluation period before the late-July trade deadline.

What to watch: The Home Run Derby broadcasts live on Netflix at 8 p.m. Eastern, with special coverage beginning an hour prior. The All-Star Game follows on Tuesday evening.