Millwall were held to a lacklustre goalless draw at home in the first leg of their League One play-off semi-final by a determined Scunthorpe side. The hosts were a threat from Jed Wallace's set-pieces, twice forcing the Iron to head over their own crossbar. Lee Gregory spurned the game's biggest chance, his low shot saved by the legs of Joe Anyon when put in one-on-one. Skipper Tony Craig volleyed over for Millwall as they pressed, while the visitors had just one shot on target.