Scotland lost four lineouts in their Calcutta Cup defeat to England on Sunday and Kellock knows they cannot afford to be as generous against an Italian side high on confidence after a first Six Nations victory over France.

With Kellock and second row partner Richie Gray, as well as back row Nathan Hines, all towering over two metres, the Scottish lineout was not expected to be a weakness.

However, they lost two of their first three lineouts at Twickenham, killing early momentum and allowing England to gain the upper hand in territory.

“The lineout was hugely frustrating and it wasn't one thing either,” said 29-year-old Kellock.

“We didn't get our lifts rights, our jumps right or our throws right in three or four other lineouts which made it a whole lot worse than it ever should been.

“Our lineout just wasn't near where it needed to be.”

Ross Ford, who has come under fire for his part in the misfiring lineout admitted Scotland would be working hard in training to avoid a repeat of their Twickenham malfunction.

The Edinburgh hooker, who recently signed for a further two years with Magners League club, was replaced by Gloucester’s Scott Lawson, at which point the Scottish lineout showed a marked improvement.

“The drill really let us down,” said Ford.

“Winning ball at set pieces was difficult for us and it led to us defending for large periods of the game.

“It's just one of those things we've got to keep working at.”