Rio Ferdinand has claimed that two Manchester United stars need to “stay fit” and the club could face a “huge problem” if one player picks up an injury. Manchester United manager Erik ten Hag was dealt a major blow after Lisandro Martinez suffered knee ligament damage in his side’s 3-0 win over West Ham. Martinez had returned from injury in January after more than three months out and the United defender had made his presence felt in backline upon his return. However, the 26-year-old Argentine defender suffered another setback after he limped off in the second half in the match against West Ha…
