The Islanders lost one of their tough guys Tuesday when the Ottawa Senators added muscle by signing Zenon Konopka to a one-year deal. The 30-year-old center spent last season with the Islanders, getting two goals, seven assists and a league-high 307 penalty minutes (including 25 fighting majors). Konopka also ranked fourth in the NHL with a 57.7 percent faceoff success rate. Konopka's contract with the Senators was reported to be one year at $700,000. Islanders winger Blake Comeau filed for salary arbitration. He is coming off a two-year deal that was worth $1.3 million. He scored 24 goals last season, fourth best on the team. The Islanders signed center Trevor Frischmon to a one-year, two-way contract. Frischmon, 29, joins the Islanders from the Columbus organization, though he spent all of last season with the AHL Springfield Falcons. Konopka had apparently wanted to stay with the Islanders, according to a series of posts on his Twitter account. On June 24, he posted: "Looking at the Coliseum from the Marriott. Hoping to run into Garth and plead for a contract." When the Islanders signed fourth-line center Marty Reasoner last week, Konopka posted: "Reasy's a good guy, gritty fourth line grinding cent -- HEY WAIT A MINUTE."