Postpublished at 12:36 BST 23 October
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Kick-off 19:45 BST
The Saints are the only team unbeaten and top of the table heading into the fifth round of matches
Saracens sit in second and will look to dismantle the Saints run at the top when they make a visit to the Gardens
Image source, BBC SportHow it stands after round four
Image source, BBC Sport
Mike Henson
BBC Sport rugby union news reporter
Image source, Getty ImagesThere's only one place to start.
Noah Caluori, Saracens' helium-heeled wing, announced himself with a sensational five tries on his first Prem start and finished the weekend with a call-up to train with the England senior side.
The 19-year-old made 233 metres with ball in hand in a 65-14 thrashing of Sale, but just as exciting to England coach Steve Borthwick will have been the vertical distance travelled.
Caluori stands 6ft 4in tall but soars to unprecedented altitudes in pursuit of a high ball.
In addition to crossing five times himself, he earned a penalty try when - attempting to claim an Owen Farrell cross-kick ball over his head - he was taken out by opposite number Tom O'Flaherty way, way below him.
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