Betis have been the definition of inconsistent this season, winning four but losing six of their 10 La Liga matches to collect 12 points, leaving them in 12th position in the table.
The Seville outfit have scored a respectable 12 goals in Spain's top flight this season but have conceded 21, which is actually the worst defensive record in the division heading into Saturday's matches.
Betis have only won once in the league since beating Valencia at the start of October, meanwhile, losing four of their last five in Spain's top flight, including a 4-0 defeat at Athletic Bilbao last weekend.
Pellegrini's side also conceded five times to Barcelona before the international break, and they do seem to be shipping goals at an alarming rate, which will be a concern for the supporters.
Los Verdiblancos finished a disappointing 15th in La Liga last season and will certainly be looking to improve on that position this term, particularly as there are a number of big-name players at the club.
Eibar, meanwhile, have won two, drawn four and lost four of their 10 league matches this season to collect 10 points, which has left them in 16th position in the table.
Jose Luis Mendilibar's side have actually only lost one of their last six in the league, though, and recorded an impressive 1-0 victory away to Sevilla towards the end of last month.
The visitors will enter Monday's clash off the back of a goalless draw with Getafe on November 22, and they will be determined to pick up a positive result considering that their next three matches after this one are against Valencia, Real Sociedad and Real Madrid.
Los Armeros, who finished 14th in La Liga last season, are actually unbeaten in their last four top-flight matches with Betis, but the two sides played out 1-1 draws in both of their meetings last term.
Real Betis La Liga form: WLLWLL
Eibar La Liga form: WDWLDD
Takashi Inui is pushing for a spot in the starting XI, but Mendilibar is otherwise expected to keep faith with the side that picked up a point in their last match.
Real Betis possible starting lineup:
Bravo; Emerson, Bartra, Ruiz, Moreno; Guardado, Rodriguez, Carvalho; Joaquin, Sanabria, Tello
Eibar possible starting lineup:
Dmitrovic; Correa, Oliveira, Bigas, Arbilla; Diop, Edu; Leon, Inui, Gil; Muto
We say: Real Betis 1-1 Eibar
As mentioned, the two teams played out 1-1 draws in both of their meetings last season, and we are struggling to separate them once again. Betis will fancy their chances of triumphing, but Eibar have proved difficult to beat in recent weeks, and we are predicting another stalemate here.