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Welcome to the new SIG Website!

Sports International Group

Ready to take you
to the next level

Sports International Group is a family-led agency with over 26 years of industry experience. SIG is a full-service sports agency that represents top men’s basketball, women’s basketball, coaching, and collegiate talent as well as housing an internal marketing department.


Client Accomplishments

SIG represents some of the most elite basketball players and coaches in the world, below is a look at our rosters’ accomplishments over the past 15 years alone.

League MVP Awards
Championship Rings
#1 Draft Picks
Rookies of the Year
Finals MVPs
Sixth Person of the Year
Peak-Performer Honors
All-League Team Spots
All-Star Appearances
Top 25 Players of All-Time Awards
League MIPS
Olympics Gold Medals
Marketing Success

Off The Court Opportunities

Our internal marketing division supports the negotiation and execution of client endorsements, advises on social media strategy, sources storytelling opportunities, as well as assists social impact missions.

Keep up with sig

representing some of the best talent in the game

At Sports International Group, we take great pride in representing some of the most talented and accomplished athletes in the world of basketball. Our roster includes top men's and women's basketball players, as well as renowned coaches and rising stars in the collegiate game.

Alyssa Thomas
Conneticut Suns
Jock Landale
Houston Rockets
Saniya Rivers
North Carolina State University
Sandy Brondello
New York Liberty

Exclusive Partnerships

SIG is proud to stand alongside these amazing teams that we call our friends!


The SIG Timeline


SIG is Founded

SIG was founded by Boris Lelchitski representing both men’s and women’s professional basketball players.


SIG Launches Men's Basketball Division

Mike Lelchitski joins the agency as the Executive Director of Men’s Basketball division, implementing a boutique-style approach to representing first-round talent.


The Internal Marketing Team is Born

SIG’s internal marketing department was born, to assist clients in-house with all off-court opportunities and needs.


SIG Spreads to the NCAA

With the launch of the NCAA’s Name, Image, and Likeness ruling, SIG began its Collegiate Division representing some of the top college basketball players in their endorsement endeavours.

Meet the team

Who We Are

Boris Lelchitski
Founder & CEO
Michael Lelchitski
Vice President & Executive Director of Men’s Basketball | NBA & FIBA Certified Agent
Sammy Wloszczowski
Director of Player Personnel | WNBA, NBA, & FIBA Certified Agent
Jonathan Jordan
General Counsel & Director of Men’s Basketball Operations
Faith Suggs
Marketing Manager | NIL & Social Media Specialist
Jacquail Jacox-Knight
Assistant Director of Men's Basketball
Mustafa Bozkurt
FIBA Certified Agent
Courtney Sussman
Administrative Assistant
5 star reviews

Client Testimonials

Alex Len
Center, Sacramento Kings

Being a part of the SIG sports agency is like being a part of another family. They make you feel like a family member versus a client with the true personal attention and the amount of time and effort they put into helping develop your career.

Candace Parker
Forward, Chicago Sky

Being with SIG has given me the opportunity to complement my WNBA career with playing overseas. Trusting SIG’s worldwide knowledge of the ins and out of this business has allowed me to maximize my earning potential. Trusting your agent is key and the quality I most appreciate in Boris is his honesty!

Jonquel Jones
Power Forward, New York Liberty

SIG is a first-class organization that I am honored to be a part of. They genuinely care about their clients and are willing to go the extra mile to help with literally anything you need.

Follow Us on Social Media!

Make sure to follow us on our socials to find out the latest news about SIG and our athletes.