After making his debut for England in the summer, he was challenged with becoming fitter and working hard in defence to improve his chances of more regular game time in England’s midfield.
At club level, he was a key part of the Bath team that won the English title last season under the guidance of attack coach Lee Blackett, who has since taken up the same role with England.
Ojomoh’s dad Steve won 12 caps for England as a loose forward, with his final appearance coming in a 64-22 defeat by New Zealand in 1998. He also won five league titles with Bath.
Meanwhile Argentina have opted to keep Ojomoh’s Bath team-mate Santiago Carreras among the replacements, after the playmaker was deployed to impressive effect from the bench in last weekend’s win over Scotland.
Argentina scored four tries after Carreras replaced starting fly-half Geronimo Prisciantelli shortly after half-time at Murrayfield, storming back from 21 points down to win 33-24.
Pablo Matera and Joaquin Oviedo are formidable back-row reinforcements, with Saracens’ Juan Martin Gonzalez and Bristol’s Santiago Grondona starting alongside Marcos Kremer.
Newcastle scrum-half Simon Benitez Cruz forms a half-back partnership with Tomas Albornoz, with Harlequins trio Rodrigo Isgro, Pedro Delgado and Guido Petti also in the starting line-up.
Former Leicester hooker Julian Montoya, now with French side Pau, captains the Pumas.
England: Steward; Feyi-Waboso, Slade, Ojomoh, Daly; Ford, Spencer; Genge, Cowan-Dickie, Opoku-Fordjour, Itoje, Coles, Pepper, Underhill, Earl.
Replacements: Dan, Baxter, Stuart, Ewels, T Curry, Pollock, Mitchell, M Smith.
Argentina: Mallia (vc); Isgro, Moroni, Piccardo, Delguy; Albornoz, Benitez Cruz; Gallo, Montoya (c), Delgado, Petti, Rubiolo, Gonzalez, Kremer, S Grondona
Replacements: Ruiz, Wenger, Rapetti, Molina, Matera (vc), Oviedo, Moyano, S Carreras
