Real Madrid defender Nacho would welcome Espanyol's Mario Hermoso arrival.
Hermoso has been linked with Real this week ahead of the January market. The stopper is a former Real player.
Nacho admits he'd be happy to see Hermoso's return.
"We are used to hearing names flowing throughout the season," said Nacho.
"If someone really has to come, I hope they'll be an elder of the house like Mario."