U.S., Jamaica rosters for Penn Relays unveiled

The rosters for the United States and Jamaican teams have been announced for Saturday's Penn Relays USA vs. the World competition.

Big names include Shawn Crawford, Justin Gatlin, Allyson Felix and Lauryn Williams for the United States, and Asafa Powell, Nesta Carter, Aleen Bailey and Shelley-Ann Fraser for Jamaica.

Philadelphia natives and West Catholic alumnae Nicole Leach and LaTavia Thomas are also on the U.S. squad, as part of the women's 4x400-meter relay team.

The U.S. roster I was went was broken down by race, but the Jamaican roster was not. So I'll just give you what I was sent, with some big names on Jamaica's team in bold:

Jamaica

Sherone Simpson, Davita Prendergast, Kalise Spencer, Christine Day, Kerron Stewart, Melanie Walker, Novlene Williams, Kenia Sinclair, Aleen Bailey, Simone Facey, Shelly-Ann Fraser, Michael Frater, Nesta Carter, Asafa Powell, Steve Mullings, Ramone McKenzie, Duwayne Barrett, Sanjay Ayre, Lerone Clarke, Michael Mason

United States of America

Men's 4x100: Walter Dix, Ivory Williams, Trell Kimmons, Mike Rodgers, Wallace Spearmon, Justin Gatlin, Darvis Patton, Shawn Crawford, Rae Edwards (alt), Ahmad Rashad (alt), Xavier Carter (alt)

Men's 4x400: Angelo Taylor, Bershawn Jackson, Johnny Dutch, Kerron Clement, David Neville, Lionel Larry, Xavier Carter, Jamal Torrence, Michael Tinsley, Joshua Scott, Quentin Summers

Men's Distance Medley Relay: Nick Symmonds, David Torrence, Duane Solomon, Leo Manzano, Bernard Lagat, Russell Brown, Lopez Lomong (alt)

Women's 4x100: Carmelita Jeter, Marshevet Myers, Alex Anderson, Allyson Felix, Lauryn Williams, Miki Barber, Me'Lisa Barber, Bianca Knight, Lashaunte'a Moore (alt), Porscha Lucas (alt), Gloria Asumnu (alt)

Women's 4x400: Debbie Dunn, Allyson Felix, Francena McCoroy, Natasha Hastings, Sanya Richards-Ross, Lashinda Demus, Dee Dee Trotter, Sheena Tosta, Nicole Leach, Latavia Thomas, Keshia Baker, Monica Hargrove

Womens's Sprint Medley Relay: Phoebe Wright, Morgan Uceny, Muna Lee

Obviously you can't just have three people in a sprint medley relay, so I expect we'll see runners from the 4x400 on that team as well.

This year's Penn Relays TV broadcast will be tape-delayed. ESPN2 will air two hours of Relays highlights on Saturday night from 8:00 to 10:00 p.m. Eastern Time.