On-loan West Ham striker Freddie Sears dragged his effort wide in response, but Scunthorpe did pull one back just before the break courtesy of McDonald's well-taken finish.
BBC: Scunthorpe 2-4 Cardiff
2.
The 23-year-old American is back to defend his title and young enough to one day break Lagat's record of eight victories.
WSJ: Lagat seeks another record at Millrose Games
3.
After five years working as an acrobat on his first show, the gymnast hurt his back and needed a break, so took a job as a coach for one of Cirque's traveling shows in Europe.