The Sabertooth Expos, formerly known as the Middlesex Expos, are a Massachusetts-based amateur baseball team that has made a name for itself in the local baseball scene. The team was founded and managed by Branden Anderson and was previously known as the East Boston Knights in the Yawkey Baseball League. After a short-lived inaugural season in the Intercity League (ICL) due to Covid-19 concerns, the Expos played in the Yawkey League in 2020 and emerged with a perfect regular season of 14-0, winning a league championship while losing only two games all year long.

In 2023, the Expos expanded their reach and acquired the Stoneham Sabers from the Boston Park League, rebranding the team as the Sabertooth Expos. Angelo Colucci founded the Stoneham Sabers in 2011, where he played and managed for 12 years. The Sabers were a top team in the Yawkey Baseball League, consistently making the playoffs each season. The Sabers moved to the Park League in 2022, before joining forces with the Expos in 2023.

With this merger, the Expos are expected to continue their winning ways in the ICL, the highest level of amateur baseball in Massachusetts. The team is anchored by two core veterans, Jose Paulino (SS) and Michael Oliveira (2B), who have been with the franchise for many years and play in the middle infield. The Sabertooth Expos are primed to make a splash in the ICL and solidify their position as one of the top amateur baseball teams in the region.