All four contracts were two-way deals with values of $650,000 at the NHL level. Summers inked a two-year deal, McKegg, Tinordi and Trotman signed one-year deals.

Signing contracts to join the Penguins were defensemen Chris Summers, Jarred Tinordi and Zach Trotman, and forward Greg McKegg.

The Pittsburgh Penguins added further depth to their organization on Saturday with the addition of four players, it was announced by executive vice president and general manager Jim Rutherford.

As junior players, Tinordi and McKegg teamed with Olli Maatta to win a 2012 Ontario Hockey League title with the London Knights. Tinordi was the Knights' captain that season.

Summers, 29, played the majority of the last two years with the Hartford Wolf Pack, the top minor-league affiliate of the New York Rangers. Summers was an alternate captain for the Wolf Pack in 2016-17, when he recorded 12 points (4G-8A) in 74 AHL regular-season contests.

A 6-foot-2, 207-pound Ann Arbor, Michigan native, Summers has skated in 70 career NHL games with the Arizona Coyotes and New York Rangers, tallying nine points (2G-7A). The Coyotes' first-round (29th overall) draft pick in 2006, Summers has played 386 career AHL contests with San Antonio, Portland and Hartford, notching 59 points (13G-46A). He was a 2013 AHL All-Star while skating for Portland.

Summers spent four seasons of college hockey at the University of Michigan, where he was teammates with Carl Hagelin. Summers was the Wolverines' captain as a senior, and an alternate captain as a junior. At the 2008 World Junior Championship, Summers was an alternate captain for Team USA, and he was voted one of the team's 'Top Three Players.' He won a gold medal with Team USA at the 2006 Under-18 World Junior Championship.

McKegg, 25, split this past year between the Tampa Bay Lightning and Florida Panthers, tallying seven points (3G-4A) in 46 contests with those clubs. He also saw action in seven AHL games for the Springfield Thunderbirds, netting four points (2G-2A).

McKegg, who stands 6-foot, 191 pounds and hails from St. Thomas, Ontario, was originally chosen by the Toronto Maple Leafs in the third round (62nd overall) in 2010. He has nine points (5G-4A) in 65 career NHL games with Toronto, Florida and Tampa Bay.

At the AHL level, McKegg has skated in 244 career regular-season games with the Toronto Marlies, Portland and Springfield, totaling 135 points (62G-73A). As a junior player, McKegg was a two-year captain for the Erie Otters before his midseason trade to London in '11-12.

Tinordi, 25, spent last season with the Tucson Roadrunners of the AHL, where he had 11 points (1G-10A) and 102 penalty minutes in 64 games. He was an alternate captain for Tucson.

Montreal's first-round (22nd overall) selection in 2010, the 6-foot-6, 230-pound Tinordi has split 53 career NHL regular-season games between the Canadiens and Arizona Coyotes, picking up six assists. He has one helper in five career NHL playoff contests.

Tinordi was the captain of the United States' Under-18 World Junior Championship team in 2010 that won gold, and an alternate captain for the U.S. entry at the 2012 World Junior Championship.

Tinordi, a Burnsville, Minnesota native, is the son of long-time NHL defenseman Mark Tinordi. The elder Tinordi competed against the Penguins in the 1991 Stanley Cup Final as a member of the Minnesota North Stars.

Trotman, 26, adds further size to the blue line as a 6-foot-3, 217-pound right-handed shooter. He spent the '16-17 campaign with the Ontario Reign of the AHL, the top affiliate of the Los Angeles Kings. Trotman was limited to just nine games played because of an upper-body injury.

A native of Carmel, Indiana native, Trotman was originally a 2010 seventh-round (210th overall) draft pick of the Boston Bruins. He has 67 games of NHL experience, all with the Bruins, during which he has produced 12 points (3G-9A).

At the AHL level, Trotman has put up 58 points (13G-45A) in 159 career regular-season games with Ontario and the Providence Bruins. He has five points (1G-4A) in 17 AHL playoff games. Trotman skated for three seasons at Lake Superior State, where he was an alternate captain his final year.