While waiting to see what shakes out on free-agent centers such as Saku Koivu, the Rangers signed free agents Tyler Arnason and Corey Locke and re-signed P.A. Parenteau on Friday, with all three presumably destined for Hartford.

Arnason, a 30-year-old Oklahoma City native whose career has been in decline, signed a two-way contract. He was 5-17-22 in 71 games in Colorado last season, largely because both centers Joe Sakic and Paul Stastny were sidelined with injuries. Arnason started his career in Chicago and made the All-Rookie Team in 2003. In 2007-08, he had 10 goals and 21 assists.

If Arnason has a very good camp, he would be in the fourth-line mix with players such as Donald Brashear, Aaron Voros, Dane Byers, Brian Boyle and perhaps Parenteau.

Locke, 25, a 5-9, 175-pound forward who compiled most of his points on the power play, had two consecutive All-Star years in the AHL, scoring 25 goals and adding 54 assists with the Houston Aeros last season and 30 goals and 42 assists with Hamilton in 2007-08.

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Parenteau, 26, played 74 games for the Wolf Pack, posting 29 goals and career highs in assists (49) and penalty minutes (142).

Isles add depth. Forward Greg Mauldin and defenseman Mark Flood have agreed to minor-league contracts with the Islanders to add depth at AHL Bridgeport. The 5-10, 181-pound Mauldin, 27, totaled 24 goals, 27 assists and 51 points last season at AHL Binghamton and is considered a good penalty-killer with speed. Flood, 24, is a 6-1, 190-pounder with a right-hand shot. Last season in Albany, he had six goals and 25 assists for 31 points.