Meanwhile, Billy's brother Mako has a calf strain and will be monitored, while Sarries second row Nick Isiekwe has an ankle strain.
Vunipola suffered the left arm break last weekend in a Champions Cup club match and will undergo surgery on Tuesday.
Brother and prop Mako Vunipola strained a calf and lock Nick Isiekwe sprained an ankle in the same match, putting their worldwide availability in doubt. Isiekwe suffered an ankle sprain and is waiting to be assessed by a consultant with regards to the full extent of the injury.
"Billy has fractured his left arm and will have surgery on Tuesday".
The injury comes not only as a huge blow to Saracens, but to England as well.
Bavaria slaps Merkel allies in election
But he stressed that the CSU still emerged as the state's strongest party with a mandate to form the next Bavarian government. Exit polls are not final results, but are fairly reliable in Germany and give a general picture of the final count.
Fast-improving Lock Isiekwe has already won three caps and would be pushing hard for Test time, barring injury concerns.
It also provides a further selection headache for England head coach Eddie Jones, particularly at No 8.
If Hughes is found guilty he could also miss England's November Tests, with the punishment for punching ranging from two to 10 weeks.
England have been unlucky with injuries, with lock Joe Launchbury ruled out after knee surgery last week while Bath fullback Anthony Watson and Exeter forward Sam Simmonds will also miss next month's games.
England take on South Africa at Twickenham on 3 November and then play New Zealand, Japan and Australia on the three subsequent Saturdays.
Finally WinFuture declared the Mate 20 Pro will cost €999 (£876.38) for a version with 6GB of RAM and 128GB of storage. But the company has introduced its new "microSD" card called the NM card , which provides with extra storage of 256GB.
Before proving his title as a rock legend, Grohl requested, "All right Collier, give us one more Metallica song before you go". Rule was called up onstage by Grohl, who learned that the youngster played guitar and asked him what songs he knew .
A lawsuit challenging Harvard University's use of race as a factor in admission decisions heads to trial Monday in Boston . Other than the University of Chicago, Northwestern was the only top-10 university in U.S.
Turkish officials have accused Saudi Arabia of murdering the journalist in the building and removing his body. The fallout from the disappearance of dissident journalist Jamal Khashoggi may jeopardize that payday.
Mr Trump has said Saudi Arabia could face "severe punishment" if it was proven it was involved in Khashoggi's disappearance. On Sunday, President Donald Trump spoke by phone with King Salman, who is the crown prince's father.
Constantinople had previously rejected the Ukrainian Church's independence moves, but chose to endorse them last week. The Orthodox Church in Ukraine has been under the jurisdiction of the Russian Orthodox Church since the late 1600s.
Ahead of Monday's talks, South Korea banned a North Korean defector-turned-journalist from the press pool covering the event. The French President insisted plans to keep their relationship this way, until the situation with North Korea "evolves".
I am not mad at her". "I don't like the fact that you have your phone in my face", she says later in the video. He also told KMOV 4 that he wishes the woman "the best" and "would still have a conversation with her".
The opening sketch of " Saturday Night Live " on October 13 was a parody of Kanye West's visit to the White House on Thursday . He went on to say the "13th amendment is a trapped door", and that Chicago's murder rate is going down every year.
Abducted health worker, Hauwa, killed
The Boko Haram terrorists on Monday executed the second International Committee of the Red Cross , ICRC , aid worker, Hauwa Leman. ISWAP said in a statement that Liman and Khorsa were because they were apostates and that Leah Sharibu will be kept as a slave.
New Porsche Panamera GTS goes official with 338 kW!
Porsche's first road-approved sports vehicle , the 904 Carrera GTS, was launched in 1963, bringing racing tech to the streets. The GTS models come equipped with a colour head-up display, adaptive cruise control and optional rear axle steering.
Discipline all that's missing as KC cruises past Jags to 5-0
Who's favored to win this Week 5 Jaguars-Chiefs matchup? Now, the question is whether the NFL's best defense can slow him down. Mahomes led the Chiefs 73 yards on their first possession, finishing the drive himself with a short scramble for a touchdown.
Shaw, Pant shine as India eye big lead against Windies
For the record, during the West Indies second innings, the new SG Test ball had to be changed twice inside 12 overs. Ajinkya Rahane (80) fell to Holder early in the morning session after adding just five runs to his overnight score.
US government posts widest deficit since 2012
But the economy was already in a strong recovery when Trump moved into the White House, and he still boosted the deficit. Bush, higher military spending after September 11, 2001, and the costs of the wars in Iraq and Afghanistan.
Facebook says attackers stole details from 29m users
The company says it will message those affected over the coming days to tell them what type of information has been accessed. Rosen declined to say how the attackers went undetected for nearly two weeks as they accessed 30 million accounts.
Bregman trolls Eovaldi, Hinch says "back it up" in ALCS
Boston starter David Price was not at his best, but the Red Sox bullpen shut Houston down in the middle and late innings. That, indeed, was Boston's own beleaguered bullpen procuring those last precious outs, mostly without incident.
Turner homers as Dodgers level NLCS with Brewers
Woodruff pumped his right arm as the ball went out Friday night and Kershaw glanced back with an incredulous look on his face. He was 1-for-4 in the Dodgers Game 163 win against the Colorado Rockies , and hit just.176 during the NLDS.