he kept trying to play on his injured foot

ALAMEDA, Calif. Boston Celtics Gear . -- The Oakland Raiders have signed top draft pick Khalil Mack to an $18.7 million, four-year contract. The deal signed Thursday also includes a club option for a fifth year. Mack was chosen fifth overall in last weeks draft and is expected to be an immediate impact pass rusher at linebacker on Oaklands rebuilt defence. In 48 college games at Buffalo, Mack recorded 28 1/2 sacks, a major college-record 16 forced fumbles, three fumble recoveries, four interceptions and 21 passes defenced. Mack will take part in his first practices in the NFL this weekend at the Raiders three-day rookie minicamp beginning Friday. Celtics Jerseys 2019 . Now comes an off-season of questions about manager Matt Williams decisions and a handful of key roster choices, including what to do about Ryan Zimmerman, whether to sign Jordan Zimmermann and Ian Desmond to long-term deals, and how to upgrade an offence that fell flat in October. Custom Boston Celtics Jerseys . The thinking at the time was Clowney could have already been promised he would be selected first overall by the Houston Texans, therefore negating any need to meet with any other teams. The plot took another twist this week. https://www.cheapceltics.com/ . - The Washington Redskins have signed free agent offensive lineman Mike McGlynn.FIVE QUICK NBA THOUGHTS: 1. DEMAR DEROZAN (Raptors): Hopefully, hes back sooner rather than later. Hell be missed by his team - obviously. Hes such a competitor. After getting hurt the other night, he kept trying to play on his injured foot. He loves the game and Im so impressed with his progress over the years. DeRozan is a mature and serious young man. There is a reason above and beyond his physical ability why hes a good player; he has worked incredibly hard on his skills, his strength and conditioning and is a student of the game. It would be nice to see him make the All Star game. In the meantime, Raptors really need to buckle down defensively and find scoring and consistency in other areas, could be a challenge. Big one tonight here in New York City vs. the red hot Nets. 2. SHAUN LIVINGSTON (Nets): When you watch the Raptors tonight it is always nice to see a guy who has fought back from a devastating injury to have success. When he was a young player with the Clippers, Livingston had a chance to be a special player in this league and then it all got derailed. He has made a difference with Brooklyn, being a sound defender who sets the tone for his team. In the absence of Deron Williams, his leadership was critical for Coach Jason Kidd turning this team around. Not a flashy player yet his smarts, toughness and consistency are a big part why the Nets are surging right now. 3. SPENCER HAWES (Sixers): Hawes has really developed in the past few years into a steady Post player. His rebounding instincts are solid while his back to the basket game has improved. He is also a capable face up shooter. He passes the ball quite well from both the low and high post and is a good fit in a teams attack. Boston Celtics Shirts. When I saw him as a young player at the University of Washington and when he was on the Sacramento Kings, I didnt envision him to have this upside. Hes really carved out a nice niche in Philly. 4. JAMAAL CRAWFORD (Clippers): Raptor fans got to see first-hand why Crawford is probably the best sixth-man in the NBA right now. He dropped 37 points on them, but more importantly he had an amazing 11 assists as well. What a luxury for Doc Rivers brining him off the bench. He changes the game completely when he comes in. You better check him from behind the three-point arc and his dribble moves are tantalizing. Hes bounced around a lot and Ive never understood why - hes always been a good player. Clips are lucky to have him. Hell steal a playoff game or two for them. 5. AL JEFFERSON (Bobcats): Sure, they spent above market value to get Jefferson but in a market like Charlotte, which has had a rough go of it lately, you have to acquire talent somehow. Hes been a good player for them. 19 points per game and 10-plus rebounds per games as well, while shooting 48 % has really helped their team. Hes in terrific shape and has been quite engaged in the rebuilding process. He plays with a terrific front court partner in Josh McRoberts, who does all the little things while Jefferson racks up the points and boards. If the Bobcats add perimeter shooting, (theyre awful in those categories -bottom eight in field goal and three-point field goal percentage) it will really open things up for their team in future years. You can never have enough shot makers. ' ' '