Webster is said to have picked up a slight groin injury and added to Graham Potter’s defensive concerns as he was already missing skipper Lewis Dunk through suspension.
Dunk received a second half red card at Man United which was a blow for the player and team as the skipper was just getting back into first team football following a long term knee injury.
Brighton defender Adam Webster missed the defeat against Burnley with a groin issue
It leaves Potter a little light on defensive options following the recent departures of Ben White to Arsenal and Dan Burn to Newcastle.
Webster, who has had his injury issues this season with hamstring and calf problems, will hope to be back in the starting line-up next week against Aston Villa.
On Webster, Potter added: “It was more fatigue than anything. A slight strain in his groin area so are hopeful for Aston Villa.”
Shane Duffy was recalled to the starting XI and struggled against Burnley striker Wout Weghorst.
Weghorst fired his first Premier League goal as relegation-threatened Burnley climbed off the bottom of the table with a resounding 3-0 success at Brighton.
Netherlands striker Weghorst – a £12million January signing from German club Wolfsburg following Chris Wood’s departure to Newcastle – set the Clarets on course for a first win in 12 top-flight games with a clinical finish.
Josh Brownhill’s deflected drive doubled the visitors’ advantage before Aaron Lennon’s second-half strike sealed a stunning scoreline at the Amex Stadium.

1. Gbamin attracting interest
CSKA Moscow want to sign Everton’s Jean-Philippe Gbamin in the coming days. (Metaratings) (Photo by Jon Super - Pool/Getty Images) | Getty Images

2. Alvarez on Palace radar
Crystal Palace are reportedly interested in Ajax midfielder Edson Alvarez, who was a target for Tottenham last year. (The Sun) (Photo by Emilee Chinn/Getty Images) | Getty Images

3. Lampard weighs up Gallagher swoop
Everton are interested in signing Conor Gallagher next summer, with manager Frank Lampard likely to use his influence with Chelsea. (TEAMtalk) (Photo by Ryan Pierse/Getty Images) | Getty Images

4. Villa plot Gomez raid
Steven Gerrard has made Liverpool star Joe Gomez his number one priority ahead of the summer window as he plots another Aston Villa signing. (Football Insider) (Photo by Nick Taylor/Liverpool FC/Liverpool FC via Getty Images) | Liverpool FC via Getty Images


