West Bromwich Albion are looking for a new manager after sacking Tony Pulis on Monday.
The former Crystal Palace boss has gone from 10/1 outsider to 1/2 clear favourite in little over 24 hours, ahead of ex-Baggies player and coach, Sam Allardyce, who is 10/3 for the Hawthorns post.
Previous favourite Michael O'Neill has drifted out of the running to 16/1, although his namesake, Martin O'Neill, is now 8/1 third favourite.
The latter is currently in charge of the Republic of Ireland national team, though his position is uncertain after their recent 5-1 aggregate defeat to Denmark in the World Cup play-offs.
West Brom gave Pulis his marching orders on Monday, after Saturday's 4-0 defeat at the hands of Chelsea left them a point above the relegation places and without a win in 10 Premier League matches.
Who should succeed Pulis at West Bromwich Albion?