(Originally aired on May 21, 2019)Today, in this archive edition of Midday, Tom's guest is John Urschel, whose resum\u233\u includes great skill and high achievement in two areas that are not often, in fact, hardly ever, associated: football and mathematics. He is a former offensive lineman for the Baltimore Ravens who retired from the NFL at the age of 26 to pursue a career in math. The book is called Mind and Matter: A Life in Math and Football. He co-wrote it with his wife, Louisa Thomas. They spoke about the book at the Ivy Bookshop in Baltimore back on May 21st, 2019. This conversation was streamed live on WYPR's Facebook page. You can watch the video here.