Cleveland Browns McDonald was selected by the
Cleveland Browns in the fourth round (109th overall) of the
1980 NFL draft. He was a backup behind quarterback
Brian Sipe in his first 4 seasons. In
1982, he replaced Sipe (who was suffering from a sore throwing arm) in the last three games of the strike-shortened season, posting a 2–1 record and helping the team make the playoffs that had been expanded to 16 teams. He started in the first round of the playoffs, which resulted in a 27–10 loss against the
Oakland Raiders, after throwing for 281 yards and 1 touchdown with no interceptions. Sipe won back the starting job the next season. In
1983, Sipe regained his starting job and McDonald returned to his backup role. In
1984, Sipe signed with the
New Jersey Generals of the
United States Football League and the Browns gave the starting job to McDonald, who decided to stay in the
NFL, despite also receiving offers to move.
Defensive coordinator Marty Schottenheimer took over the Browns head coaching job halfway through the season. McDonald had a 5–11 record after enduring 53 sacks and registering 3,472 passing yards, 14 touchdowns and 23 interceptions. Against the
New England Patriots, he had a career-high 320 passing yards on 23 out of 37 attempts (62.2%) and one touchdown. Against the
New Orleans Saints, he tallied a career-high 75% completion percentage (18 out of 24). Against the
Houston Oilers, he completed 13 straight passes.
Dallas Cowboys On November 4,
1986, he was signed by the
Dallas Cowboys as a
free agent to be the third-string
quarterback, after starter
Danny White was lost for the season with a broken right wrist he suffered during the 14–17 loss against the
New York Giants. He reunited with pass offense coordinator
Paul Hackett, who was one of his coaches with the Trojans and the Browns. McDonald also became the first left hander quarterback to make the team in franchise history. In
1987, he beat rookie
Kevin Sweeney for the third-string quarterback job, leading the team with a 92.0 quarterback rating in pre-season. The players went on a strike in the third week of the season. Earlier games were canceled, reducing the 16-game season to 15 games. The
NFL decided that the games were going to be played with replacement players. Sweeney was signed to be a part of the
Dallas Cowboys replacement team. Sweeney had success, and he was kept on the roster for the rest of the year along with McDonald. On August 23,
1988, he was released without playing a down in his time with the team. ==Personal life==