William Roy "Link" Lyman (November 30, 1898 - December 28, 1972), also sometimes known as Roy Lyman, was an American football player and coach. Lyman was born in Nebraska and raised in Kansas. He played college football for the Nebraska Cornhuskers football team in 1918, 1919, and 1921. He played professional football as a tackle in the National Football League (NFL) for the Canton/Cleveland Bulldogs (1922-1925), the Frankford Yellow Jackets (1925), and the Chicago Bears (1926-1928, 1930-1932, and 1933-1934).

In September 1922, Lyman left Lincoln, Nebraska, to play professional football for the Canton Bulldogs. The Bulldogs were coached by Guy Chamberlin, an All-American out of Nebraska, who invited Lyman to join the team. With Lyman and Pete Henry as its star tackles, the 1922 Canton Bulldogs compiled a 10-0-2 record, shut out nine of twelve opponents, outscored all opponents 184 to 15, and won the NFL championship.  Lyman returned to the Bulldogs the following year. The 1923 team had another undefeated season (11-0-1), shut out eight of twelve opponents, outscored all opponents by a combined total of 246 to 19, and won its second consecutive NFL championship. After the season, Lyman was selected as a first-team All-Pro player by the Canton Daily News and a second-team All-Pro by Collyer's Eye magazine.  In August 1924, Cleveland jeweler Samuel Deutsch bought the Canton Bulldogs and moved the team to Cleveland where they became the Cleveland Bulldogs during the 1924 NFL season. The Bulldogs compiled a 7-1-1 record, outscored opponents by a total of 229 to 60, and won their third consecutive NFL championship. After the 1924 season, Lyman was selected as a first-team All-Pro by Collyer's Eye and a second-team All-Pro by the Green Bay Press-Gazette.  In July 1925, Lyman and four of his teammates (Pete Henry, Rudy Comstock, Ben Jones, and Harry Robb) bought the team for $3,500 and moved it back to Canton. Lyman played seven games for the 1925 Bulldogs and then finished the season playing four games for the Frankford Yellow Jackets. Lyman was reunited with Guy Chamberlain who was then Frankford's head coach. After the 1925 season, Lyman was selected as a first-team All-Pro on the team selected by NFL Commissioner Joseph Carr; he was also selected as a second-team All-Pro by Collyer's Eye.Answer this question using a quote from the following article:

What position did he play for the Bulldogs?
With Lyman and Pete Henry as its star tackles,