That wasn't the only time Matthews 'assisted' a Scottish club. In April 1940, under the special registration conditions of wartime, he was spirited into the Airdrie team to play Dundee United in the semi-final replay of the Emergency War Cup (the Scottish Cup in all but name). Though within the rules at the time it was regarded as sharp practice and reports stated that the majority of the 20,000+ crowd at Easter Road backed United as a consequence. Whatever, United won 3-1 and Matthews didn't score.