Kenrick Ellis and Mike Harris became this year's cautionary tales for the Giants. Just because you make the initial 53-man roster . . .

Ellis and Harris were cut Sunday, less than 24 hours after being named to the team, to make room for two new additions acquired off waivers.

The Giants were awarded second-year defensive tackle Louis Nix III from the Texans and cornerback and kickoff returner Asa Jackson from the Ravens. Both were waived Saturday by their former teams.

Nix was a third-round pick of the Texans just last year. In fact, they traded up to get him with the 83rd overall selection in 2014. He spent his rookie season on injured reserve with a knee injury, though, and became expendable with Houston's signing of Vince Wilfork.

Nix, 6-2 and 331 pounds, has yet to play in an NFL regular-season game but started all four of the Texans' preseason games this summer.

Jackson, who played under former Ravens defensive backs coach and current Giants defensive coordinator Steve Spagnuolo last season, has played in 14 regular-season games in four years with six career starts. As for his special-teams abilities, he had an exciting but not always productive preseason. He had a kickoff return of 103 yards and a punt return of 53, although neither was for a touchdown. He also lost fumbles on two other punt returns.

Ellis, a defensive tackle, was signed by the Giants as a free agent from the Jets this offseason. Harris was signed from the Lions' practice squad last October when the team was short-handed at cornerback.

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Giant steps

The Giants signed six recently cut players to their practice squad: offensive linemen Adam Gettis and Emmett Cleary, receiver Julian Talley, defensive end Brad Bars, linebacker Cole Farrand and defensive back C.J. Conway. They have four more spots open on the 10-man squad. . . . The Giants have lost four straight openers, the second-longest active streak in the NFL. "Well, we're going to start the season, so we'd better be ready,"coach Tom Coughlin said. "There are certainly many, many areas where we need to improve, and I think we will improve . . . But make no doubt about it: The season is underway and we're going to have to get there in a hurry."