Nottingham Forest reportedly made an attempt to sign former Chelsea, Liverpool and Inter Milan player Victor Moses in March.
The Nigerian international is currently signed to Spartak Moscow in the Russian Premier League. But following Russia's invasion of Ukraine, FIFA adopted temporary rules that would have allowed his transfer to the Reds.
The sporting body gave foreign players and managers the right to "unilaterally suspend their employment contracts" with Russian teams until the end of June this year. Spartak were also removed from the UEFA Europa League, while the national team were barred from the FIFA Men's World Cup.