Watch Robert Upshaw's impressive defense during Lakers training camp scrimmages

The Los Angeles Lakers scrimmaged again on the fourth day of their training camp in Hawaii, and sophomore guard Jordan Clarkson is one player who continues to stand out, getting to the basket with ease and showing off how well he stayed in shape over the offseason.

Another young player who showed some impressive stuff? Much talked about undrafted rookie center Robert Upshaw, who looks noticeably slimmer than he did during Summer League in Las Vegas after losing a reported 20 pounds in an effort to make the Lakers final roster. The reason Upshaw has garnered far more fan attention than most undrafted rookies is his rare defensive talent, which mostly manifested in college with his prodigious 4.5 blocks per game average. One thing that was less advertised with Upshaw was his lateral quickness, but the seven-footer was able to stay with Clarkson stride for stride on one pick and roll possession and force a turnover around two minutes into the video.

Here is the whole video of the scrimmage for those interested before we have real (kind of) basketball to break down tomorrow after the Lakers' preseason tips off against the Utah Jazz in Hawaii: (via Serena Winters of Lakers Nation):