Lazio have strengthened their defence with the double signing of Wesley Hoedt and Mauricio dos Santos Nascimento.
Brazilian centre-back Mauricio arrives on a six-month loan deal from Sporting Lisbon and Lazio have the option to buy the 26-year-old for €2.65m (£2m) in the summer.
Hoedt, who was in Rome on Tuesday to undergo a medical, will join the Italian side on a free transfer from AZ when his contact expires at the end of the season.
"From July I will be a Lazio player. I hope I can do well and help my teammates," Hoedt told Lazio Style Radio.
"I can't wait to start playing for Lazio. July can't come soon enough. In the meantime, I will watch all of Lazio's games hoping that the team can qualify for the Champions League."
Lazio have conceded 22 goals in 19 Serie A games this season and currently sit fifth in the table.
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