The Giants have made roster moves as the team prepares for Week 5:

EAST RUTHERFORD, N.J. – With Weston Richburg in the concussion protocol, the Giants today signed another center, Jon Halapio, off their practice squad.

To make room on the roster, the Giants waived linebacker Deontae Skinner, who was re-signed last week and was inactive in the game at Tampa Bay on Sunday.

The Giants also signed offensive lineman Anthony Fabiano to the practice squad.

Halapio was signed to a reserve/future contract by the Giants on Jan. 9. He played in all four preseason games, including a start at left guard in the finale at New England, before he was waived on Sept. 2. Halapio was signed to the practice squad the following day.

Halapio entered the NFL as a sixth-round draft choice by the New England Patriots in 2014. He was subsequently with the Denver Broncos and Arizona Cardinals before returning to New England for training camp in 2016. Halapio has not played in an NFL regular-season game.

At the University of Florida, Halapio played in 51 games with 43 starts, and was elected a team captain in each of his final two seasons.

Richburg has started the Giants' last 26 games, including one postseason game, at center. He was replaced by Brett Jones when forced to leave the game in Tampa. Jones would presumably start Sunday's home game against the Los Angeles Chargers if Richburg can't play.

Fabiano, 6-1 and 303 pounds, played in four games for the Cleveland Browns last season. He started at center in the season finale against Pittsburgh.

Fabiano entered the NFL last year as a rookie free agent with the Baltimore Ravens. He spent most of the season with the Browns, first on the practice squad and, beginning on Dec. 5, the active roster. Fabiano was waived by the Browns on Sept. 2 and was on the Washington Redskins' practice squad from Sept. 4-11.