SAN FRANCISCO -- Giants ace Tim Lincecum is giving $25,000 to assist the longtime San Francisco fan who was attacked outside Dodger Stadium last month.

The two-time NL Cy Young Award winner's donation will go to the Bryan Stow Fund to help with the 42-year-old paramedic's medical bills and other expenses. The father of two was beaten in a parking lot outside Dodger Stadium after the teams' March 31 season opener and remains hospitalized in Los Angeles in a medically induced coma. No arrests have been made despite a $150,000 reward.

"This was a senseless act of violence and I wanted to help out Mr. Stow and his family," Lincecum said in a statement Thursday. "It's also close to me because not only is Mr. Stow a Giants fan, but I have family and friends who are firefighters, police officers and paramedics and this honors their service to the community.

"I encourage Giants fans to support Mr. Stow in a positive way and hope there are not any more unfortunate acts between fans in this great rivalry," Lincecum said.

The Giants raised nearly $70,000 for the Stow fund, partnering with his employer, American Medical Response, to gather donations at AT&T Park on Monday during the Dodgers-Giants series opener. The total includes a $10,000 donation from the team.

County USC Medical Center spokeswoman Rosa Saca said Thursday night that Stow is being slowly weaned off the medication that was keeping him in the coma.

"The next two or three days are going to be critical," she said. "He will be observed very closely because the doctors want to see how his body reacts."

In a post on a website established by the Stow family, his sister Erin Stow said that his ventilator was removed and a tracheostomy tube was put into his neck Thursday night, "which should make him more comfortable."

In a rare scene Monday night, a player from each team addressed fans before first pitch. Giants reliever Jeremy Affeldt and Dodgers second baseman Jamey Carroll came together for a joint message: This rivalry must stay on the field, without violence and hatred.

The teams gathered on the pitcher's mound to make clear there should be no further acts of violence in this long-standing rivalry. There were no major incidents during the series.

The Giants heightened security at their waterfront ballpark and the Dodgers were doing the same Thursday night for the start of their four-game series against the St. Louis Cardinals.

Information from ESPNLosAngeles.com's Ramona Shelburne and The Associated Press was used in this report.