By Will Butcher

Leeds winger Stuart Dallas has picked up a calf injury while on international duty with Northern Ireland, according to a reliable journalist.

The former Brentford man was not included in Michael O’Neill’s 23-man matchday squad to face Germany on Tuesday evening after featuring for the national side three days earlier.

Leeds fans questioned why Dallas had not been selected and BBC broadcaster Joel Taggart subsequently revealed on his personal Twitter account that the attacker had sustained a calf problem and “flew home” on Tuesday morning

It remains to be seen how long Dallas will be sidelined for, after playing in the 4-0 win against San Marino on Saturday before being withdrawn in the 65th minute.

Dallas, 25, has 18 Northern Ireland caps to his name after making his debut in 2011 against Wales, but was absent against Joachim Low’s side in his country’s 2018 World Cup qualifier.

The injury will come as a blow to the Yorkshire giants, as Dallas has been in good form for Leeds after securing his place on the left side of midfield for Garry Monk’s side.

After an impressive summer with his country at Euro 2016, Dallas has played in 11 league and cup encounters for the Yorkshire giants, and was set to feature against Derby on Saturday.

However, if Dallas is confirmed as injured, Leeds could be a dealt a huge blow and will be likely to replace Dallas with either Alex Mowatt or Kemar Roofe against the Rams.

In other Leeds news, what happened to Dario Del Fabro?