.png)
Who We Are
At The Hill Boys, we’re building more than better ballplayers — we’re building character, confidence, and community. Every session is fueled by discipline, energy, and accountability, creating a culture where athletes push themselves and each other to be great. Players walk away not only with sharpened skills, but with lifelong mentorship, meaningful connections, and a mindset built for winning — on the field and in life. This is a brotherhood, a proving ground, and a family — and when you train with The Hill Boys, you’re part of something bigger than baseball.
Marquis Grissom is a former Major League Baseball outfielder with a 17-year career playing for teams like the Montreal Expos, Atlanta Braves, and Cleveland Indians. A World Series champion and two-time All-Star, Marquis was known for his speed, defense, and leadership on and off the field. Since retiring, he has dedicated himself to developing the next generation of athletes through his training program, bringing the same work ethic and discipline that defined his playing career.
Marquis Grissom
Lou Collier is a former Major League infielder who played for multiple teams including the Pittsburgh Pirates, Milwaukee Brewers, and Philadelphia Phillies. Known for his versatility and baseball IQ, Lou brought a strong presence to every clubhouse he joined. After his playing career, he transitioned into coaching and player development, using his deep understanding of the game to mentor young athletes. His passion for the sport and commitment to excellence continue to shape the next generation of pros.
Lou Collier
Marquis and Lou have a shared journey through professional baseball that laid the foundation for a lasting friendship—but it was their passion for developing the next generation that brought them together. After years in the game, they saw a need for a program that offered more than just training—it needed mentorship, structure, and a standard of excellence rooted in experience.
That vision became The Hill Boys. Built by former MLB players Marquis Grissom and Lou Collier, the program was created to give young athletes access to elite-level coaching, real-world guidance, and a support system that mirrors the intensity of professional baseball. What started as offseason training quickly grew into a brotherhood and a proven pathway to the next level.
Our goal is simple: to shape great players—and even better men—by giving them the tools, mindset, and opportunity to succeed at the highest level.
Michael Harris II
Atlanta Braves
Outfileder
Lawrence Butler
Oakland Athletics
Outfielder
Chandler Simpson
Tampa Bay Rays
Outfielder
Marquis Grissom Jr
Washington Nationals
Pitcher
Cam Collier
Cincinnati Reds
Third Baseman
Ryan Spikes
Tampa Bay Rays
Infielder
Jaylen Nowlin
Minnesota Twins
Pitcher
Tink Hence
St. Louis Carinals
Pitcher