Millwall...0 Tranmere...0:  Tranmere's goalkeeper John Achterberg needed a pain-killing injection in his knee in the build-up to this match. If he still cannot feel anything today, only this time because he has had too much to drink, it would be understandable.

The Dutchman deserved to lead the Second Division club's celebrations at earning an unlikely place in the draw for the semi-finals.

While Tranmere's well-organised defending meant Achterberg was never overworked, the goalkeeper was outstanding when it mattered. Having made a fine save from Tim Cahill's header, he kept the best for the second half. By diverting an admittedly poor Kevin Muscat penalty over the bar, the former PSV Eindhoven player forced a replay.

Rested from a game last Wednesday, Achterberg did not look a man who has been troubled by pain as Tranmere earned a deserved draw. Millwall had the better chances but gradually disintegrated in the face of a 4-5-1 system.

Led by their player-manager Dennis Wise, Millwall dominated the first half and ought to have scored. Yet they were far less effective after the interval as Tranmere closed down more quickly to stop the flow of passes and crosses. With Millwall too prone to mistakes and too short of ingenuity and width, they never looked likely to prevail.

Wise was said by his assistant Ray Wilkins to have been "disgusted" he did not take the 75th-minute penalty himself, but the Tranmere mood was more light-hearted. "Jokingly we have talked about Europe," said their manager Brian Little.

Most of the focus, though, was on Achterberg. "He's an unbelievably dedicated goalkeeper," Little said. "He's in at eight o'clock every morning and he's in the gym before training. He does extras and trains the schoolkids when he can. That today is a great reward for him."

Tranmere must show at home that they can carry the game to Millwall because their attacking threat was limited, with the impressive wing-back Gareth Roberts having three of their best efforts without seriously worrying Andy Marshall.

They barely created a chance in the first half as Wise dictated the tempo. Cahill was a menace in a roaming role and his header, well saved by Achterberg from a Wise corner, was the pick of five Millwall chances.

A home onslaught seemed likely to continue but Tranmere defended higher up the pitch and got more quickly into tackles. All the same Cahill ought to have done better than head at Achterberg shortly before he was pushed by Ryan Taylor after Kevin Braniff crossed to earn a penalty. Muscat's kick was down the middle and Achterberg, diving to his right, stuck out his left hand.