Marchetti, who will complete a €5.2m switch from Cagliari, has been signed given that Fernando Muslera is likely to leave the outfit this summer.
“It’d be great to play football again – it’s the end of a nightmare. I have always trained with consistency and I’m happy that President Claudio Lotito and Lazio believed in me.
“I instantly had faith in the Lazio project and I fully supported the move,” continued the custodian.
“It’s the European Championship next summer and I’d like to be there with Italy. I want to do well for that reason too.”