Owen Farrell is out of Saracens’ Euro clash with Glasgow
The England stand-off was due to play his first match since the Calcutta Cup draw with Scotland.
However, his wife Georgie Lyon has gone into labour, causing a reshuffle in the Saracens backline.
Full-back Alex Goode will move to stand-off, with winger Liam Williams switching to 15. David Strettle comes off the bench to fill the wing slot vacated by Williams.