First of all, the Red Sox broke a seven-game losing streak. Or was it 20? It seemed like it was at least into double digits. Anyhow, they won a game. 9-4.
And Brock Holt was a big part of it (playing left field instead of Hanley Ramirez) - he hit for the cycle - a double, then a single, then a home run, and finally a triple. Triples are rare enough at Fenway Park. Cycles are much more so - rarer than no-hitters even.
Last cycle hit by a Red Sox player, anywhere, was John Valentin, a little over 19 years ago, on June 6, 1996. (That one was at Fenway.)