was pumping iron last Tuesday when he was broadsided by the ping of his smartphone. A text from his agent, Steve Caric, informed Alonso, one of the NFL's top young defenders, that his bo s would be calling ASAP.Uh-oh, Alonso thought to himself as he stepped out to await the call from general manager Doug Whaley. Something's up.The menacing middle linebacker had read the situation correctly: In rapid-fire fashion, had just gone down. The would be sending Alonso, whose standout Matisse Thybulle Jersey rookie season was followed by that wiped out his entire 2014 campaign, to the for star running back ."Whaley kinda just dropped it on me, and I was definitely a little shocked," recalls Alonso, who pa sed his physical at the ' training facility on Monday and officially joined his new team upon the start of the new league year Tuesday afternoon. "But I was totally excited, too. If I was gonna get traded, the would have been my first pick."That's largely because Alonso, a former Oregon standout, will be reunited with (and ex-Ducks) coach Chip Kelly -- and also because he'll see a lot of familiar faces in the locker room. Among the first to learn of the trade were tight end and receiver (), two of Alonso's workout partners at California Strength, the San Ramon, California, training facility about 50 miles from the suburban San Jose home where the linebacker was raised."After I got off the phone (with Whaley) I walked back in and said, 'Hey, Zach -- it looks like I'm gonna be your teammate!'" Alonso says. "He said, 'Get the (hell) out of here.' He and Jeff didn't believe me. About two minutes later, the news started breaking and our phones were blowing up, and there were a lot of hugs."Alonso got a warm greeting from Kelly when he arrived in Philly, which is a testament to how far he has come. Twice suspended by Kelly at Oregon -- the second time after an embarra sing arrest that became known in team circles as -- Alonso cleaned up his act and fought his way to the next level, with the selecting him in the second round of following his breakout senior campaign.While serving his second suspension (the first had cost him an entire season) at Oregon, Alonso wasn't exactly envisioning a future in which Kelly would give up one of the NFL's most prolific offensive players to acquire him."I'd definitely have to say that was (a scenario which was) very far-fetched, to say the least," Alonso says. "But everything happens for a reason, I gue s."To the casual fan, Kelly's decision to jettison the 26-year-old McCoy -- a two-time All-Pro selection -- defied reason. For all the talk about McCoy's high cap number and the whispers that he hadn't fully bought into Kelly's program, he's still a huge name, while most fans regarded Alonso as that other guy when proce sing the trade."That's totally understandable," Alonso says. "I've played one year in the league, and this guy's been tearing the league apart for years. I get it. I'm just gonna try to come in, do my job and win people over."Some of the league's top personnel men need no such convincing; one AFC front-office executive, citing Alonso's speed, ferocity and upside, described the deal as a "steal for the ."While hardly objective, Caric, Alonso's agent, insists that many NFL decision-makers regard Alonso as an under-the-radar version of middle linebacker , the NFL's Defensive Player of the Year in 2013."Kiko actually had better numbers in 2013," Caric says. "Would Eagle fans be happy with a McCoy-for-Kuechly trade? That's e sentially what they did, but Kiko is more violent."In the aftermath of the trade, there were suggestions that Alonso wasn't a good fit for new Buffalo coach Rex Ryan's defense. Alonso laughs at the notion, pointing out that as a rookie he played for then- defensive coordinator (and current head coach) Mike Pettine, a Ryan disciple. "I only played in the exact same defense (in 2013)," Alonso says.The week before the trade, the sent members of their training staff to Northern California to videotape Alonso during workouts, ostensibly to a se s his progre s eight months after knee surgery. Says Alonso: "I didn't think anything of it." Po sibly, Buffalo was also compiling footage to show potential trade partners who might need convincing that Alonso's ACL recovery was going as planned. If so, the strategy paid off."Right now, I wouldn't say I'm fully recovered," Alonso says. "But I'm extremely confident I'll get back to where I was before the injury."In the meantime, Alonso is embracing the City of Brotherly Love. During his brief visit, he met a few of his new teammates, renewed acquaintances with Kelly and even had one of , though it hasn't yet been personalized for the ' newest linebacker."I had a smoothie, but we're gonna have to try out a couple of different ones," Alonso says. "It was good. The guy who makes 'em definitely knows what he's doing -- I'll say that."Alonso also got a brief tour of the city, including the iconic steps at the Philadelphia Museum of Art where ."I'm definitely gonna do that -- run up those steps and jump around like Rocky," Alonso says. "In fact, that's like the first thing I'm gonna do when I come back."Follow Michael Silver on Twitter . Mike Scott Jersey