The outside-half, who has been in inspired form for club and country this season, was subject to big hits during the first half of their clash with Northampton Saints at Allianz Park on Sunday.
Scans have indicated no serious damage
The 22-year-old influential No10 was seen limping and struggled to kick after a series of bruising encounters, including from England colleague Luther Burrell.
Marcelo Bosch landed two kicks from distance for Sarries before Farrell attempted an effort just before the break and was clearly in pain at the end of the first half and failed to return for the second half.
Farrell watched the rest of the game with his foot in a protective boot and was on crutches as he was sent for an X-ray, which revealed he had not broken a bone, but the north London club arranged for an MRI scan to confirm no lasting damage.
“Owen Farrell will resume training towards the end of this week,” read a statement on the Saracens website.
“The Saracens and England fly-half sustained a foot injury during the match against Northampton Saints on Sunday, but scans have indicated no serious damage.”
Former England international Charlie Hodgson replaced Farrell and the Aviva Premiership league leaders survived a late comeback from Saints to move within one point of guaranteeing a home semi-final for this year’s Premiership play-offs and director of rugby Mark McCall is likely to err on the side of caution with Farrell’s return.
“It’s too early to say about Owen,” McCall said after the match. “It’s a foot injury and you never know with foot injuries.
“Owen doesn’t remember when it happened. We’ll have news later in the week. He couldn’t kick with it.”
With Saracens set to face Clermont Auvergne in the semi-finals of the last iteration of the Heineken Cup on 26 April, a match which will need Farrell’s creativity, Hodgson should get the nod against for their clash against Newcastle Falcons who are fighting to avoid relegation.
MORE: The latest football news
MORE: The latest tennis news