The San Francisco 49ers landed another wide receiver in a headline-making week for the NFC West champions, agreeing to terms Saturday with free agent Mario Manningham on a two-year contract.

Randy Moss joined the roster last Monday.

Now, the big question is who will be throwing them the ball: Peyton Manning or Alex Smith?

Manningham met Thursday with the 49ers, who still appear to have interest in Manning after coach Jim Harbaugh worked him out Tuesday at Duke University. Manning worked out for the Tennessee Titans on Saturday and it appears he will now choose between them, San Francisco and the Denver Broncos.

Have the 49ers done enough already to entice him, and show they're aiming for another shot at the Super Bowl this season?

Agent Drew Rosenhaus confirmed Saturday night that Manningham, the former New York Giants wideout, had reached a deal with the 49ers, who lost in overtime of the NFC championship game to Manningham and the eventual Super Bowl champions at Candlestick Park on Jan. 22.

Manningham caught a 17-yard touchdown pass from Eli Manning with 8:34 remaining in regulation of the NFC title game to help New York reach the Super Bowl.

He had five more receptions for 73 yards in the Giants' 21-17 Super Bowl victory over the New England Patriots, including an over-the-shoulder 38-yard catch between two defenders on which he managed to stay inbounds to start the game-winning, 88-yard touchdown drive.

The 25-year-old Manningham had 39 catches for 523 yards and four touchdowns total last year in his fourth NFL season.

Manningham will join an upgraded receiving corps that also includes Moss, who signed a one-year contract Monday, and Michael Crabtree, the team's 10th overall pick in the 2009 draft out of Texas Tech who had 72 receptions for 874 yards and four touchdowns in 2011.

"It's going down. Mario Manningham signs with 49ers. This is a sick WR squad. It's going to be crazy on the Offensive side of the ball," tweeted defensive lineman Ricky Jean Francois.

The 49ers, who ended an eight-year playoff drought in Harbaugh's first season of 2011, also will return their entire starting defensive 11 after bringing back cornerback Carlos Rogers on a $31.3 million, four-year deal this week. So, that too could be attractive to Peyton Manning, even though there's speculation he would prefer to stay in the AFC and not have to regularly face off with his younger brother.

Grossman returns to Redskins: Rex Grossman is returning to the Washington Redskins for a one-year deal, fully expecting to spend the season helping groom Robert Griffin III.

Grossman told ESPN 980 on Saturday that he's fully aware the Redskins are going to draft a quarterback - probably Heisman Trophy winner Griffin - with the No. 2 overall pick next month. But Grossman said he wants to remain a part of the team and play a part in its turnaround after another last-place season.

Seahawks agree to deal with DT Jones: The Seattle Seahawks added needed depth on the defensive line by agreeing to terms with free agent defensive tackle Jason Jones.

The team confirmed the agreement Saturday. Terms of the deal were not announced, but Jones' agent, Mike McCartney, said on Twitter the deal is for one-year.

Jones has spent his first four seasons with the Tennessee Titans where he had 15-1/2 sacks. He was used as a defensive tackle and end last season, and his versatility fits with Seattle's defensive philosophy. The 6-foot-5, 276-pound Jones started 15 games in 2010 and 13 last season.