Ernesto Valverde's position at Barcelona looks to be under serious threat following a disappointing end to the season.
As a result of the latest reports from Sky Sport Italia and RAC1, William Hill have cut Roberto Martinez to 8/13 (1.62) to take over the Camp Nou.
Valverde agreed a 12-month extension to his current contract in February. However, the downturn in results in the final third of the campaign means the 55-year-old looks unlikely to remain in place to take charge.
The Catalan giants may have won La Liga by 11 points, but their performances in the cup competitions have reportedly convinced the club's hierarchy that a change is required.
Liverpool stunned Barca in the Champions League semi-finals, overturning a 3-0 first leg defeat with a 4-0 win at Anfield. With rivals Real Madrid dominating the competition in recent years, such a galling defeat was never going to sit well with a club seeking their first European crown since 2015.
The Copa del Rey had provided a reliable source of silverware in recent seasons with Barca lifting the trophy on four consecutive occasions. Saturday's final, though, went the way of Valencia who ran out as 2-1 winners in Seville, ending their 11-year trophy drought and heaping the pressure on the Barca boss.
Martinez tops the betting having led Belgium to third place at the 2018 World Cup. While the 45-year-old is yet to manage a Champions League club, at 8/13 (1.62) the bookmakers are taking no chances on the former Everton boss returning to club management by making a summer switch to Catalunya.
The Spaniard sits ahead of Massimiliano Allegri (6/1) who is waiting for a call from the Catalan giants, Goal understands. The Juventus boss has guided the Old Lady to five consecutive Scudettos and finished as runners up twice in the Champions League during his time in Turin.
Xavi Hernandez has just taken a managerial role at Al Sadd in Qatar so is worth avoiding at 9/1 (10.0). Next in the betting come Ronald Koeman and Joachim Low, both of whom can be backed at 14/1 (15.0).