Paqueta suffered a groin problem in the 1-1 draw at Aston Villa on January 26 and missed most of training for the following week, but he is now back and in contention to face Brentford in a boost to manager Graham Potter.
The Republic of Ireland international signed for Brighton on a six-month straight loan at the end of the winter window but could not feature in the squad against Chelsea because he had played in Brighton’s 7-0 defeat to Nottingham Forest in the same weekend.
Antonio, believed to be training in a separate facility, is out for the season and is in specialist rehab following the leg fracture he sustained in a car accident in early December.
West Ham have been boosted by the return of Lucas Paqueta, Jean-Clair Todibo and Edson Alvarez to training.
All three could feature in Saturday’s home match against Brentford after missing out on the 2-1 defeat at Chelsea on February 3.